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Finding the Fourth Proportional to 576,904.20, 865,356.30 and 514,235.40

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Solution

The fourth proportional to 576,904.20, 865,356.30 and 514,235.40 is: 771,353.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,904.20 : 865,356.30 = 514,235.40 : x
  2. Step 2: Convert to fraction form
    576,904.20/865,356.30 = 514,235.40/x
  3. Step 3: Cross multiply
    576,904.20x = 865,356.30 × 514,235.40
  4. Step 4: Simplify right side
    576,904.20x = 444,996,843,073.02
  5. Step 5: Solve for x
    x = 444,996,843,073.02/576,904.20
  6. Step 6: Final answer
    x = 771,353.10

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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.