Home / 566,306.36-781,487.02-321,335.72

Finding the Fourth Proportional to 566,306.36, 781,487.02 and 321,335.72

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Solution

The fourth proportional to 566,306.36, 781,487.02 and 321,335.72 is: 443,434.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,306.36 : 781,487.02 = 321,335.72 : x
  2. Step 2: Convert to fraction form
    566,306.36/781,487.02 = 321,335.72/x
  3. Step 3: Cross multiply
    566,306.36x = 781,487.02 × 321,335.72
  4. Step 4: Simplify right side
    566,306.36x = 251,119,694,242.35
  5. Step 5: Solve for x
    x = 251,119,694,242.35/566,306.36
  6. Step 6: Final answer
    x = 443,434.35

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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.