Home / 1,061,635.80-1,588,565.70-781,699.80

Finding the Fourth Proportional to 1,061,635.80, 1,588,565.70 and 781,699.80

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Solution

The fourth proportional to 1,061,635.80, 1,588,565.70 and 781,699.80 is: 1,169,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,061,635.80 : 1,588,565.70 = 781,699.80 : x
  2. Step 2: Convert to fraction form
    1,061,635.80/1,588,565.70 = 781,699.80/x
  3. Step 3: Cross multiply
    1,061,635.80x = 1,588,565.70 × 781,699.80
  4. Step 4: Simplify right side
    1,061,635.80x = 1,241,781,489,976.86
  5. Step 5: Solve for x
    x = 1,241,781,489,976.86/1,061,635.80
  6. Step 6: Final answer
    x = 1,169,686.90

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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.