Home / 861,030.49-1,291,493.22-321,182.50

Finding the Fourth Proportional to 861,030.49, 1,291,493.22 and 321,182.50

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Solution

The fourth proportional to 861,030.49, 1,291,493.22 and 321,182.50 is: 481,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,030.49 : 1,291,493.22 = 321,182.50 : x
  2. Step 2: Convert to fraction form
    861,030.49/1,291,493.22 = 321,182.50/x
  3. Step 3: Cross multiply
    861,030.49x = 1,291,493.22 × 321,182.50
  4. Step 4: Simplify right side
    861,030.49x = 414,805,021,132.65
  5. Step 5: Solve for x
    x = 414,805,021,132.65/861,030.49
  6. Step 6: Final answer
    x = 481,754.16

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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.