Home / 765,785.70-1,056,766.77-479,463.66

Finding the Fourth Proportional to 765,785.70, 1,056,766.77 and 479,463.66

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Solution

The fourth proportional to 765,785.70, 1,056,766.77 and 479,463.66 is: 661,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,785.70 : 1,056,766.77 = 479,463.66 : x
  2. Step 2: Convert to fraction form
    765,785.70/1,056,766.77 = 479,463.66/x
  3. Step 3: Cross multiply
    765,785.70x = 1,056,766.77 × 479,463.66
  4. Step 4: Simplify right side
    765,785.70x = 506,681,263,310.58
  5. Step 5: Solve for x
    x = 506,681,263,310.58/765,785.70
  6. Step 6: Final answer
    x = 661,648.90

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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.