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Finding the Fourth Proportional to 691,700.28, 954,548.08 and 385,796.48

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Solution

The fourth proportional to 691,700.28, 954,548.08 and 385,796.48 is: 532,400.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,700.28 : 954,548.08 = 385,796.48 : x
  2. Step 2: Convert to fraction form
    691,700.28/954,548.08 = 385,796.48/x
  3. Step 3: Cross multiply
    691,700.28x = 954,548.08 × 385,796.48
  4. Step 4: Simplify right side
    691,700.28x = 368,261,283,517.53
  5. Step 5: Solve for x
    x = 368,261,283,517.53/691,700.28
  6. Step 6: Final answer
    x = 532,400.08

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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.