Home / 721,785.87-996,099.93-415,910.16

Finding the Fourth Proportional to 721,785.87, 996,099.93 and 415,910.16

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Solution

The fourth proportional to 721,785.87, 996,099.93 and 415,910.16 is: 573,976.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,785.87 : 996,099.93 = 415,910.16 : x
  2. Step 2: Convert to fraction form
    721,785.87/996,099.93 = 415,910.16/x
  3. Step 3: Cross multiply
    721,785.87x = 996,099.93 × 415,910.16
  4. Step 4: Simplify right side
    721,785.87x = 414,288,081,262.29
  5. Step 5: Solve for x
    x = 414,288,081,262.29/721,785.87
  6. Step 6: Final answer
    x = 573,976.44

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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.