Home / 691,631.17-954,449.13-385,707.87

Finding the Fourth Proportional to 691,631.17, 954,449.13 and 385,707.87

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Solution

The fourth proportional to 691,631.17, 954,449.13 and 385,707.87 is: 532,275.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,631.17 : 954,449.13 = 385,707.87 : x
  2. Step 2: Convert to fraction form
    691,631.17/954,449.13 = 385,707.87/x
  3. Step 3: Cross multiply
    691,631.17x = 954,449.13 × 385,707.87
  4. Step 4: Simplify right side
    691,631.17x = 368,138,543,811.64
  5. Step 5: Solve for x
    x = 368,138,543,811.64/691,631.17
  6. Step 6: Final answer
    x = 532,275.82

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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.