Home / 725,615.61-1,001,324.00-398,926.25

Finding the Fourth Proportional to 725,615.61, 1,001,324.00 and 398,926.25

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Solution

The fourth proportional to 725,615.61, 1,001,324.00 and 398,926.25 is: 550,504.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,615.61 : 1,001,324.00 = 398,926.25 : x
  2. Step 2: Convert to fraction form
    725,615.61/1,001,324.00 = 398,926.25/x
  3. Step 3: Cross multiply
    725,615.61x = 1,001,324.00 × 398,926.25
  4. Step 4: Simplify right side
    725,615.61x = 399,454,421,353.75
  5. Step 5: Solve for x
    x = 399,454,421,353.75/725,615.61
  6. Step 6: Final answer
    x = 550,504.17

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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.