Home / 575,029.86-861,439.30-321,541.52

Finding the Fourth Proportional to 575,029.86, 861,439.30 and 321,541.52

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Solution

The fourth proportional to 575,029.86, 861,439.30 and 321,541.52 is: 481,694.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,029.86 : 861,439.30 = 321,541.52 : x
  2. Step 2: Convert to fraction form
    575,029.86/861,439.30 = 321,541.52/x
  3. Step 3: Cross multiply
    575,029.86x = 861,439.30 × 321,541.52
  4. Step 4: Simplify right side
    575,029.86x = 276,988,501,909.74
  5. Step 5: Solve for x
    x = 276,988,501,909.74/575,029.86
  6. Step 6: Final answer
    x = 481,694.12

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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.