Home / 828,419.32-1,240,635.96-472,353.88

Finding the Fourth Proportional to 828,419.32, 1,240,635.96 and 472,353.88

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Solution

The fourth proportional to 828,419.32, 1,240,635.96 and 472,353.88 is: 707,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,419.32 : 1,240,635.96 = 472,353.88 : x
  2. Step 2: Convert to fraction form
    828,419.32/1,240,635.96 = 472,353.88/x
  3. Step 3: Cross multiply
    828,419.32x = 1,240,635.96 × 472,353.88
  4. Step 4: Simplify right side
    828,419.32x = 586,019,209,373.53
  5. Step 5: Solve for x
    x = 586,019,209,373.53/828,419.32
  6. Step 6: Final answer
    x = 707,394.43

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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.