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Finding the Fourth Proportional to 634,517.28, 875,633.04 and 348,038.64

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Solution

The fourth proportional to 634,517.28, 875,633.04 and 348,038.64 is: 480,292.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,517.28 : 875,633.04 = 348,038.64 : x
  2. Step 2: Convert to fraction form
    634,517.28/875,633.04 = 348,038.64/x
  3. Step 3: Cross multiply
    634,517.28x = 875,633.04 × 348,038.64
  4. Step 4: Simplify right side
    634,517.28x = 304,754,132,380.67
  5. Step 5: Solve for x
    x = 304,754,132,380.67/634,517.28
  6. Step 6: Final answer
    x = 480,292.88

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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.