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Finding the Fourth Proportional to 931,625.28, 1,397,489.76 and 266,760

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Solution

The fourth proportional to 931,625.28, 1,397,489.76 and 266,760 is: 400,154.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,625.28 : 1,397,489.76 = 266,760 : x
  2. Step 2: Convert to fraction form
    931,625.28/1,397,489.76 = 266,760/x
  3. Step 3: Cross multiply
    931,625.28x = 1,397,489.76 × 266,760
  4. Step 4: Simplify right side
    931,625.28x = 372,794,368,377.60
  5. Step 5: Solve for x
    x = 372,794,368,377.60/931,625.28
  6. Step 6: Final answer
    x = 400,154.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.