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Finding the Fourth Proportional to 888,703.11, 1,333,192.89 and 289,524.78

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Solution

The fourth proportional to 888,703.11, 1,333,192.89 and 289,524.78 is: 434,332.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,703.11 : 1,333,192.89 = 289,524.78 : x
  2. Step 2: Convert to fraction form
    888,703.11/1,333,192.89 = 289,524.78/x
  3. Step 3: Cross multiply
    888,703.11x = 1,333,192.89 × 289,524.78
  4. Step 4: Simplify right side
    888,703.11x = 385,992,378,174.81
  5. Step 5: Solve for x
    x = 385,992,378,174.81/888,703.11
  6. Step 6: Final answer
    x = 434,332.20

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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.