Home / 725,282.67-1,000,831.46-419,378.89

Finding the Fourth Proportional to 725,282.67, 1,000,831.46 and 419,378.89

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Solution

The fourth proportional to 725,282.67, 1,000,831.46 and 419,378.89 is: 578,708.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,282.67 : 1,000,831.46 = 419,378.89 : x
  2. Step 2: Convert to fraction form
    725,282.67/1,000,831.46 = 419,378.89/x
  3. Step 3: Cross multiply
    725,282.67x = 1,000,831.46 × 419,378.89
  4. Step 4: Simplify right side
    725,282.67x = 419,727,587,454.08
  5. Step 5: Solve for x
    x = 419,727,587,454.08/725,282.67
  6. Step 6: Final answer
    x = 578,708.97

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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.