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Finding the Fourth Proportional to 725,068.11, 1,000,560.04 and 402,797.86

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Solution

The fourth proportional to 725,068.11, 1,000,560.04 and 402,797.86 is: 555,842.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,068.11 : 1,000,560.04 = 402,797.86 : x
  2. Step 2: Convert to fraction form
    725,068.11/1,000,560.04 = 402,797.86/x
  3. Step 3: Cross multiply
    725,068.11x = 1,000,560.04 × 402,797.86
  4. Step 4: Simplify right side
    725,068.11x = 403,023,445,918.41
  5. Step 5: Solve for x
    x = 403,023,445,918.41/725,068.11
  6. Step 6: Final answer
    x = 555,842.19

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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.