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Finding the Fourth Proportional to 502,894.20, 754,341.30 and 437,940.30

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Solution

The fourth proportional to 502,894.20, 754,341.30 and 437,940.30 is: 656,910.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,894.20 : 754,341.30 = 437,940.30 : x
  2. Step 2: Convert to fraction form
    502,894.20/754,341.30 = 437,940.30/x
  3. Step 3: Cross multiply
    502,894.20x = 754,341.30 × 437,940.30
  4. Step 4: Simplify right side
    502,894.20x = 330,356,455,224.39
  5. Step 5: Solve for x
    x = 330,356,455,224.39/502,894.20
  6. Step 6: Final answer
    x = 656,910.45

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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.