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Finding the Fourth Proportional to 510,673.48, 703,207.74 and 499,344.28

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Solution

The fourth proportional to 510,673.48, 703,207.74 and 499,344.28 is: 687,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,673.48 : 703,207.74 = 499,344.28 : x
  2. Step 2: Convert to fraction form
    510,673.48/703,207.74 = 499,344.28/x
  3. Step 3: Cross multiply
    510,673.48x = 703,207.74 × 499,344.28
  4. Step 4: Simplify right side
    510,673.48x = 351,142,762,620.73
  5. Step 5: Solve for x
    x = 351,142,762,620.73/510,673.48
  6. Step 6: Final answer
    x = 687,607.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.