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Finding the Fourth Proportional to 1,001,281.57, 1,501,922.32 and 664,979.09

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Solution

The fourth proportional to 1,001,281.57, 1,501,922.32 and 664,979.09 is: 997,468.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,001,281.57 : 1,501,922.32 = 664,979.09 : x
  2. Step 2: Convert to fraction form
    1,001,281.57/1,501,922.32 = 664,979.09/x
  3. Step 3: Cross multiply
    1,001,281.57x = 1,501,922.32 × 664,979.09
  4. Step 4: Simplify right side
    1,001,281.57x = 998,746,928,432.23
  5. Step 5: Solve for x
    x = 998,746,928,432.23/1,001,281.57
  6. Step 6: Final answer
    x = 997,468.61

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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.