Home / 566,319.71-781,345.18-321,264.11

Finding the Fourth Proportional to 566,319.71, 781,345.18 and 321,264.11

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Solution

The fourth proportional to 566,319.71, 781,345.18 and 321,264.11 is: 443,244.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,319.71 : 781,345.18 = 321,264.11 : x
  2. Step 2: Convert to fraction form
    566,319.71/781,345.18 = 321,264.11/x
  3. Step 3: Cross multiply
    566,319.71x = 781,345.18 × 321,264.11
  4. Step 4: Simplify right side
    566,319.71x = 251,018,165,982.37
  5. Step 5: Solve for x
    x = 251,018,165,982.37/566,319.71
  6. Step 6: Final answer
    x = 443,244.62

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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.