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Finding the Fourth Proportional to 610,434.30, 915,651.45 and 542,783.10

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Solution

The fourth proportional to 610,434.30, 915,651.45 and 542,783.10 is: 814,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,434.30 : 915,651.45 = 542,783.10 : x
  2. Step 2: Convert to fraction form
    610,434.30/915,651.45 = 542,783.10/x
  3. Step 3: Cross multiply
    610,434.30x = 915,651.45 × 542,783.10
  4. Step 4: Simplify right side
    610,434.30x = 497,000,132,550.50
  5. Step 5: Solve for x
    x = 497,000,132,550.50/610,434.30
  6. Step 6: Final answer
    x = 814,174.65

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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.