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Finding the Fourth Proportional to 658,281.06, 908,422.62 and 356,475.06

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Solution

The fourth proportional to 658,281.06, 908,422.62 and 356,475.06 is: 491,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,281.06 : 908,422.62 = 356,475.06 : x
  2. Step 2: Convert to fraction form
    658,281.06/908,422.62 = 356,475.06/x
  3. Step 3: Cross multiply
    658,281.06x = 908,422.62 × 356,475.06
  4. Step 4: Simplify right side
    658,281.06x = 323,830,007,969.86
  5. Step 5: Solve for x
    x = 323,830,007,969.86/658,281.06
  6. Step 6: Final answer
    x = 491,932.74

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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.