Home / 766,106.38-1,056,720.52-479,128.24

Finding the Fourth Proportional to 766,106.38, 1,056,720.52 and 479,128.24

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Solution

The fourth proportional to 766,106.38, 1,056,720.52 and 479,128.24 is: 660,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,106.38 : 1,056,720.52 = 479,128.24 : x
  2. Step 2: Convert to fraction form
    766,106.38/1,056,720.52 = 479,128.24/x
  3. Step 3: Cross multiply
    766,106.38x = 1,056,720.52 × 479,128.24
  4. Step 4: Simplify right side
    766,106.38x = 506,304,642,144.20
  5. Step 5: Solve for x
    x = 506,304,642,144.20/766,106.38
  6. Step 6: Final answer
    x = 660,880.34

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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.