Home / 725,449.96-1,001,041.36-419,479.95

Finding the Fourth Proportional to 725,449.96, 1,001,041.36 and 419,479.95

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Solution

The fourth proportional to 725,449.96, 1,001,041.36 and 419,479.95 is: 578,836.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,449.96 : 1,001,041.36 = 419,479.95 : x
  2. Step 2: Convert to fraction form
    725,449.96/1,001,041.36 = 419,479.95/x
  3. Step 3: Cross multiply
    725,449.96x = 1,001,041.36 × 419,479.95
  4. Step 4: Simplify right side
    725,449.96x = 419,916,779,640.73
  5. Step 5: Solve for x
    x = 419,916,779,640.73/725,449.96
  6. Step 6: Final answer
    x = 578,836.31

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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.