Home / 725,626.62-1,001,376.61-398,953.42

Finding the Fourth Proportional to 725,626.62, 1,001,376.61 and 398,953.42

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Solution

The fourth proportional to 725,626.62, 1,001,376.61 and 398,953.42 is: 550,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,626.62 : 1,001,376.61 = 398,953.42 : x
  2. Step 2: Convert to fraction form
    725,626.62/1,001,376.61 = 398,953.42/x
  3. Step 3: Cross multiply
    725,626.62x = 1,001,376.61 × 398,953.42
  4. Step 4: Simplify right side
    725,626.62x = 399,502,619,766.68
  5. Step 5: Solve for x
    x = 399,502,619,766.68/725,626.62
  6. Step 6: Final answer
    x = 550,562.24

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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.