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Finding the Fourth Proportional to 666,933.60, 1,001,469.60 and 617,815.20

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Solution

The fourth proportional to 666,933.60, 1,001,469.60 and 617,815.20 is: 927,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,933.60 : 1,001,469.60 = 617,815.20 : x
  2. Step 2: Convert to fraction form
    666,933.60/1,001,469.60 = 617,815.20/x
  3. Step 3: Cross multiply
    666,933.60x = 1,001,469.60 × 617,815.20
  4. Step 4: Simplify right side
    666,933.60x = 618,723,141,217.92
  5. Step 5: Solve for x
    x = 618,723,141,217.92/666,933.60
  6. Step 6: Final answer
    x = 927,713.26

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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.