Home / 725,155.66-1,000,732.62-398,466.01

Finding the Fourth Proportional to 725,155.66, 1,000,732.62 and 398,466.01

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Solution

The fourth proportional to 725,155.66, 1,000,732.62 and 398,466.01 is: 549,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,155.66 : 1,000,732.62 = 398,466.01 : x
  2. Step 2: Convert to fraction form
    725,155.66/1,000,732.62 = 398,466.01/x
  3. Step 3: Cross multiply
    725,155.66x = 1,000,732.62 × 398,466.01
  4. Step 4: Simplify right side
    725,155.66x = 398,757,934,098.85
  5. Step 5: Solve for x
    x = 398,757,934,098.85/725,155.66
  6. Step 6: Final answer
    x = 549,892.88

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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.