Home / 722,493.18-996,941.91-400,123.74

Finding the Fourth Proportional to 722,493.18, 996,941.91 and 400,123.74

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Solution

The fourth proportional to 722,493.18, 996,941.91 and 400,123.74 is: 552,116.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,493.18 : 996,941.91 = 400,123.74 : x
  2. Step 2: Convert to fraction form
    722,493.18/996,941.91 = 400,123.74/x
  3. Step 3: Cross multiply
    722,493.18x = 996,941.91 × 400,123.74
  4. Step 4: Simplify right side
    722,493.18x = 398,900,125,591.94
  5. Step 5: Solve for x
    x = 398,900,125,591.94/722,493.18
  6. Step 6: Final answer
    x = 552,116.11

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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.