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Finding the Fourth Proportional to 624,004.60, 936,006.90 and 308,396.20

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Solution

The fourth proportional to 624,004.60, 936,006.90 and 308,396.20 is: 462,594.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,004.60 : 936,006.90 = 308,396.20 : x
  2. Step 2: Convert to fraction form
    624,004.60/936,006.90 = 308,396.20/x
  3. Step 3: Cross multiply
    624,004.60x = 936,006.90 × 308,396.20
  4. Step 4: Simplify right side
    624,004.60x = 288,660,971,133.78
  5. Step 5: Solve for x
    x = 288,660,971,133.78/624,004.60
  6. Step 6: Final answer
    x = 462,594.30

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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.