Home / 725,007.92-1,000,379.03-418,972.14

Finding the Fourth Proportional to 725,007.92, 1,000,379.03 and 418,972.14

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Solution

The fourth proportional to 725,007.92, 1,000,379.03 and 418,972.14 is: 578,105.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,007.92 : 1,000,379.03 = 418,972.14 : x
  2. Step 2: Convert to fraction form
    725,007.92/1,000,379.03 = 418,972.14/x
  3. Step 3: Cross multiply
    725,007.92x = 1,000,379.03 × 418,972.14
  4. Step 4: Simplify right side
    725,007.92x = 419,130,940,915.36
  5. Step 5: Solve for x
    x = 419,130,940,915.36/725,007.92
  6. Step 6: Final answer
    x = 578,105.33

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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.