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Finding the Fourth Proportional to 504,872.31, 696,712.58 and 278,517.75

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Solution

The fourth proportional to 504,872.31, 696,712.58 and 278,517.75 is: 384,348.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,872.31 : 696,712.58 = 278,517.75 : x
  2. Step 2: Convert to fraction form
    504,872.31/696,712.58 = 278,517.75/x
  3. Step 3: Cross multiply
    504,872.31x = 696,712.58 × 278,517.75
  4. Step 4: Simplify right side
    504,872.31x = 194,046,818,785.71
  5. Step 5: Solve for x
    x = 194,046,818,785.71/504,872.31
  6. Step 6: Final answer
    x = 384,348.31

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1.5x scale

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.