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Finding the Fourth Proportional to 624,012.70, 936,019.05 and 491,302.30

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Solution

The fourth proportional to 624,012.70, 936,019.05 and 491,302.30 is: 736,953.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,012.70 : 936,019.05 = 491,302.30 : x
  2. Step 2: Convert to fraction form
    624,012.70/936,019.05 = 491,302.30/x
  3. Step 3: Cross multiply
    624,012.70x = 936,019.05 × 491,302.30
  4. Step 4: Simplify right side
    624,012.70x = 459,868,312,108.82
  5. Step 5: Solve for x
    x = 459,868,312,108.82/624,012.70
  6. Step 6: Final answer
    x = 736,953.45

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.