Home / 699,380.64-1,049,070.12-278,951.76

Finding the Fourth Proportional to 699,380.64, 1,049,070.12 and 278,951.76

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Solution

The fourth proportional to 699,380.64, 1,049,070.12 and 278,951.76 is: 418,427.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,380.64 : 1,049,070.12 = 278,951.76 : x
  2. Step 2: Convert to fraction form
    699,380.64/1,049,070.12 = 278,951.76/x
  3. Step 3: Cross multiply
    699,380.64x = 1,049,070.12 × 278,951.76
  4. Step 4: Simplify right side
    699,380.64x = 292,639,956,337.41
  5. Step 5: Solve for x
    x = 292,639,956,337.41/699,380.64
  6. Step 6: Final answer
    x = 418,427.30

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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.