Home / 722,493.68-996,942.60-400,124.24

Finding the Fourth Proportional to 722,493.68, 996,942.60 and 400,124.24

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Solution

The fourth proportional to 722,493.68, 996,942.60 and 400,124.24 is: 552,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,493.68 : 996,942.60 = 400,124.24 : x
  2. Step 2: Convert to fraction form
    722,493.68/996,942.60 = 400,124.24/x
  3. Step 3: Cross multiply
    722,493.68x = 996,942.60 × 400,124.24
  4. Step 4: Simplify right side
    722,493.68x = 398,900,900,148.62
  5. Step 5: Solve for x
    x = 398,900,900,148.62/722,493.68
  6. Step 6: Final answer
    x = 552,116.80

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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.