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Finding the Fourth Proportional to 603,328.91, 904,988.40 and 243,494.25

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Solution

The fourth proportional to 603,328.91, 904,988.40 and 243,494.25 is: 365,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,328.91 : 904,988.40 = 243,494.25 : x
  2. Step 2: Convert to fraction form
    603,328.91/904,988.40 = 243,494.25/x
  3. Step 3: Cross multiply
    603,328.91x = 904,988.40 × 243,494.25
  4. Step 4: Simplify right side
    603,328.91x = 220,359,472,500.45
  5. Step 5: Solve for x
    x = 220,359,472,500.45/603,328.91
  6. Step 6: Final answer
    x = 365,239.38

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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.