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Finding the Fourth Proportional to 566,205.89, 781,340.68 and 308,083.91

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Solution

The fourth proportional to 566,205.89, 781,340.68 and 308,083.91 is: 425,143.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,205.89 : 781,340.68 = 308,083.91 : x
  2. Step 2: Convert to fraction form
    566,205.89/781,340.68 = 308,083.91/x
  3. Step 3: Cross multiply
    566,205.89x = 781,340.68 × 308,083.91
  4. Step 4: Simplify right side
    566,205.89x = 240,718,491,736.46
  5. Step 5: Solve for x
    x = 240,718,491,736.46/566,205.89
  6. Step 6: Final answer
    x = 425,143.04

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1.5x scale

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.