Home / 861,001.76-1,291,515.05-300,036.26

Finding the Fourth Proportional to 861,001.76, 1,291,515.05 and 300,036.26

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Solution

The fourth proportional to 861,001.76, 1,291,515.05 and 300,036.26 is: 450,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,001.76 : 1,291,515.05 = 300,036.26 : x
  2. Step 2: Convert to fraction form
    861,001.76/1,291,515.05 = 300,036.26/x
  3. Step 3: Cross multiply
    861,001.76x = 1,291,515.05 × 300,036.26
  4. Step 4: Simplify right side
    861,001.76x = 387,501,345,335.71
  5. Step 5: Solve for x
    x = 387,501,345,335.71/861,001.76
  6. Step 6: Final answer
    x = 450,058.71

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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.