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Finding the Fourth Proportional to 723,243.60, 998,451.72 and 561,737.04

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Solution

The fourth proportional to 723,243.60, 998,451.72 and 561,737.04 is: 775,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,243.60 : 998,451.72 = 561,737.04 : x
  2. Step 2: Convert to fraction form
    723,243.60/998,451.72 = 561,737.04/x
  3. Step 3: Cross multiply
    723,243.60x = 998,451.72 × 561,737.04
  4. Step 4: Simplify right side
    723,243.60x = 560,867,313,775.71
  5. Step 5: Solve for x
    x = 560,867,313,775.71/723,243.60
  6. Step 6: Final answer
    x = 775,488.80

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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.