Home / 766,229.72-1,056,261.86-490,548.16

Finding the Fourth Proportional to 766,229.72, 1,056,261.86 and 490,548.16

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Solution

The fourth proportional to 766,229.72, 1,056,261.86 and 490,548.16 is: 676,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,229.72 : 1,056,261.86 = 490,548.16 : x
  2. Step 2: Convert to fraction form
    766,229.72/1,056,261.86 = 490,548.16/x
  3. Step 3: Cross multiply
    766,229.72x = 1,056,261.86 × 490,548.16
  4. Step 4: Simplify right side
    766,229.72x = 518,147,313,127.55
  5. Step 5: Solve for x
    x = 518,147,313,127.55/766,229.72
  6. Step 6: Final answer
    x = 676,229.73

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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.