Home / 725,726.41-1,001,528.15-399,064.28

Finding the Fourth Proportional to 725,726.41, 1,001,528.15 and 399,064.28

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Solution

The fourth proportional to 725,726.41, 1,001,528.15 and 399,064.28 is: 550,722.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,726.41 : 1,001,528.15 = 399,064.28 : x
  2. Step 2: Convert to fraction form
    725,726.41/1,001,528.15 = 399,064.28/x
  3. Step 3: Cross multiply
    725,726.41x = 1,001,528.15 × 399,064.28
  4. Step 4: Simplify right side
    725,726.41x = 399,674,103,076.52
  5. Step 5: Solve for x
    x = 399,674,103,076.52/725,726.41
  6. Step 6: Final answer
    x = 550,722.83

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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.