Home / 725,182.60-1,000,693.31-419,278.61

Finding the Fourth Proportional to 725,182.60, 1,000,693.31 and 419,278.61

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Solution

The fourth proportional to 725,182.60, 1,000,693.31 and 419,278.61 is: 578,570.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,182.60 : 1,000,693.31 = 419,278.61 : x
  2. Step 2: Convert to fraction form
    725,182.60/1,000,693.31 = 419,278.61/x
  3. Step 3: Cross multiply
    725,182.60x = 1,000,693.31 × 419,278.61
  4. Step 4: Simplify right side
    725,182.60x = 419,569,296,097.83
  5. Step 5: Solve for x
    x = 419,569,296,097.83/725,182.60
  6. Step 6: Final answer
    x = 578,570.55

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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.