Home / 725,721.93-1,001,521.97-399,059.81

Finding the Fourth Proportional to 725,721.93, 1,001,521.97 and 399,059.81

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Solution

The fourth proportional to 725,721.93, 1,001,521.97 and 399,059.81 is: 550,716.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,721.93 : 1,001,521.97 = 399,059.81 : x
  2. Step 2: Convert to fraction form
    725,721.93/1,001,521.97 = 399,059.81/x
  3. Step 3: Cross multiply
    725,721.93x = 1,001,521.97 × 399,059.81
  4. Step 4: Simplify right side
    725,721.93x = 399,667,160,056.12
  5. Step 5: Solve for x
    x = 399,667,160,056.12/725,721.93
  6. Step 6: Final answer
    x = 550,716.66

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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.