Home / 861,176.40-1,291,246.20-441,272.40

Finding the Fourth Proportional to 861,176.40, 1,291,246.20 and 441,272.40

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Solution

The fourth proportional to 861,176.40, 1,291,246.20 and 441,272.40 is: 661,642.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,176.40 : 1,291,246.20 = 441,272.40 : x
  2. Step 2: Convert to fraction form
    861,176.40/1,291,246.20 = 441,272.40/x
  3. Step 3: Cross multiply
    861,176.40x = 1,291,246.20 × 441,272.40
  4. Step 4: Simplify right side
    861,176.40x = 569,791,309,664.88
  5. Step 5: Solve for x
    x = 569,791,309,664.88/861,176.40
  6. Step 6: Final answer
    x = 661,642.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.