Home / 725,011.92-1,000,384.54-418,976.14

Finding the Fourth Proportional to 725,011.92, 1,000,384.54 and 418,976.14

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Solution

The fourth proportional to 725,011.92, 1,000,384.54 and 418,976.14 is: 578,110.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,011.92 : 1,000,384.54 = 418,976.14 : x
  2. Step 2: Convert to fraction form
    725,011.92/1,000,384.54 = 418,976.14/x
  3. Step 3: Cross multiply
    725,011.92x = 1,000,384.54 × 418,976.14
  4. Step 4: Simplify right side
    725,011.92x = 419,137,253,084.88
  5. Step 5: Solve for x
    x = 419,137,253,084.88/725,011.92
  6. Step 6: Final answer
    x = 578,110.84

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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.