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Finding the Fourth Proportional to 691,558.75, 954,367.95 and 385,632.15

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Solution

The fourth proportional to 691,558.75, 954,367.95 and 385,632.15 is: 532,181.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,558.75 : 954,367.95 = 385,632.15 : x
  2. Step 2: Convert to fraction form
    691,558.75/954,367.95 = 385,632.15/x
  3. Step 3: Cross multiply
    691,558.75x = 954,367.95 × 385,632.15
  4. Step 4: Simplify right side
    691,558.75x = 368,034,964,449.59
  5. Step 5: Solve for x
    x = 368,034,964,449.59/691,558.75
  6. Step 6: Final answer
    x = 532,181.78

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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.