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Finding the Fourth Proportional to 565,331.46, 779,807.21 and 371,761.30

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Solution

The fourth proportional to 565,331.46, 779,807.21 and 371,761.30 is: 512,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,331.46 : 779,807.21 = 371,761.30 : x
  2. Step 2: Convert to fraction form
    565,331.46/779,807.21 = 371,761.30/x
  3. Step 3: Cross multiply
    565,331.46x = 779,807.21 × 371,761.30
  4. Step 4: Simplify right side
    565,331.46x = 289,902,140,280.17
  5. Step 5: Solve for x
    x = 289,902,140,280.17/565,331.46
  6. Step 6: Final answer
    x = 512,800.30

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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.