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Finding the Fourth Proportional to 963,488.62, 1,445,472.72 and 289,580.80

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Solution

The fourth proportional to 963,488.62, 1,445,472.72 and 289,580.80 is: 434,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,488.62 : 1,445,472.72 = 289,580.80 : x
  2. Step 2: Convert to fraction form
    963,488.62/1,445,472.72 = 289,580.80/x
  3. Step 3: Cross multiply
    963,488.62x = 1,445,472.72 × 289,580.80
  4. Step 4: Simplify right side
    963,488.62x = 418,581,146,635.78
  5. Step 5: Solve for x
    x = 418,581,146,635.78/963,488.62
  6. Step 6: Final answer
    x = 434,443.27

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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.