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Finding the Fourth Proportional to 628,229.28, 866,955.74 and 341,748.69

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Solution

The fourth proportional to 628,229.28, 866,955.74 and 341,748.69 is: 471,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,229.28 : 866,955.74 = 341,748.69 : x
  2. Step 2: Convert to fraction form
    628,229.28/866,955.74 = 341,748.69/x
  3. Step 3: Cross multiply
    628,229.28x = 866,955.74 × 341,748.69
  4. Step 4: Simplify right side
    628,229.28x = 296,280,988,432.98
  5. Step 5: Solve for x
    x = 296,280,988,432.98/628,229.28
  6. Step 6: Final answer
    x = 471,612.83

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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.