Home / 766,107.38-1,056,721.89-479,129.24

Finding the Fourth Proportional to 766,107.38, 1,056,721.89 and 479,129.24

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Solution

The fourth proportional to 766,107.38, 1,056,721.89 and 479,129.24 is: 660,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,107.38 : 1,056,721.89 = 479,129.24 : x
  2. Step 2: Convert to fraction form
    766,107.38/1,056,721.89 = 479,129.24/x
  3. Step 3: Cross multiply
    766,107.38x = 1,056,721.89 × 479,129.24
  4. Step 4: Simplify right side
    766,107.38x = 506,306,356,047.06
  5. Step 5: Solve for x
    x = 506,306,356,047.06/766,107.38
  6. Step 6: Final answer
    x = 660,881.71

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Double scale
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1.5x scale

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.