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Finding the Fourth Proportional to 574,006.80, 861,010.20 and 512,005.35

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Solution

The fourth proportional to 574,006.80, 861,010.20 and 512,005.35 is: 768,008.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,006.80 : 861,010.20 = 512,005.35 : x
  2. Step 2: Convert to fraction form
    574,006.80/861,010.20 = 512,005.35/x
  3. Step 3: Cross multiply
    574,006.80x = 861,010.20 × 512,005.35
  4. Step 4: Simplify right side
    574,006.80x = 440,841,828,804.57
  5. Step 5: Solve for x
    x = 440,841,828,804.57/574,006.80
  6. Step 6: Final answer
    x = 768,008.03

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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.