Home / 708,680.40-1,063,150.20-287,998.80

Finding the Fourth Proportional to 708,680.40, 1,063,150.20 and 287,998.80

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Solution

The fourth proportional to 708,680.40, 1,063,150.20 and 287,998.80 is: 432,050.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,680.40 : 1,063,150.20 = 287,998.80 : x
  2. Step 2: Convert to fraction form
    708,680.40/1,063,150.20 = 287,998.80/x
  3. Step 3: Cross multiply
    708,680.40x = 1,063,150.20 × 287,998.80
  4. Step 4: Simplify right side
    708,680.40x = 306,185,981,819.76
  5. Step 5: Solve for x
    x = 306,185,981,819.76/708,680.40
  6. Step 6: Final answer
    x = 432,050.87

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Similar ratio
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1.5x scale

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.