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Finding the Fourth Proportional to 1,042,805, 1,439,070.90 and 565,877

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Solution

The fourth proportional to 1,042,805, 1,439,070.90 and 565,877 is: 780,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,805 : 1,439,070.90 = 565,877 : x
  2. Step 2: Convert to fraction form
    1,042,805/1,439,070.90 = 565,877/x
  3. Step 3: Cross multiply
    1,042,805x = 1,439,070.90 × 565,877
  4. Step 4: Simplify right side
    1,042,805x = 814,337,123,679.30
  5. Step 5: Solve for x
    x = 814,337,123,679.30/1,042,805
  6. Step 6: Final answer
    x = 780,910.26

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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.