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Finding the Fourth Proportional to 576,064.90, 864,097.35 and 398,772.10

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Solution

The fourth proportional to 576,064.90, 864,097.35 and 398,772.10 is: 598,158.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,064.90 : 864,097.35 = 398,772.10 : x
  2. Step 2: Convert to fraction form
    576,064.90/864,097.35 = 398,772.10/x
  3. Step 3: Cross multiply
    576,064.90x = 864,097.35 × 398,772.10
  4. Step 4: Simplify right side
    576,064.90x = 344,577,914,863.94
  5. Step 5: Solve for x
    x = 344,577,914,863.94/576,064.90
  6. Step 6: Final answer
    x = 598,158.15

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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.