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Finding the Fourth Proportional to 691,797.71, 954,678.35 and 385,873.88

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Solution

The fourth proportional to 691,797.71, 954,678.35 and 385,873.88 is: 532,504.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,797.71 : 954,678.35 = 385,873.88 : x
  2. Step 2: Convert to fraction form
    691,797.71/954,678.35 = 385,873.88/x
  3. Step 3: Cross multiply
    691,797.71x = 954,678.35 × 385,873.88
  4. Step 4: Simplify right side
    691,797.71x = 368,385,435,257.79
  5. Step 5: Solve for x
    x = 368,385,435,257.79/691,797.71
  6. Step 6: Final answer
    x = 532,504.56

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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.