Home / 725,925.50-1,001,660.55-419,998.22

Finding the Fourth Proportional to 725,925.50, 1,001,660.55 and 419,998.22

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Solution

The fourth proportional to 725,925.50, 1,001,660.55 and 419,998.22 is: 579,530.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,925.50 : 1,001,660.55 = 419,998.22 : x
  2. Step 2: Convert to fraction form
    725,925.50/1,001,660.55 = 419,998.22/x
  3. Step 3: Cross multiply
    725,925.50x = 1,001,660.55 × 419,998.22
  4. Step 4: Simplify right side
    725,925.50x = 420,695,648,044.22
  5. Step 5: Solve for x
    x = 420,695,648,044.22/725,925.50
  6. Step 6: Final answer
    x = 579,530.06

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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.