Home / 718,726.24-991,824.83-396,429.41

Finding the Fourth Proportional to 718,726.24, 991,824.83 and 396,429.41

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Solution

The fourth proportional to 718,726.24, 991,824.83 and 396,429.41 is: 547,063.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,726.24 : 991,824.83 = 396,429.41 : x
  2. Step 2: Convert to fraction form
    718,726.24/991,824.83 = 396,429.41/x
  3. Step 3: Cross multiply
    718,726.24x = 991,824.83 × 396,429.41
  4. Step 4: Simplify right side
    718,726.24x = 393,188,532,180.25
  5. Step 5: Solve for x
    x = 393,188,532,180.25/718,726.24
  6. Step 6: Final answer
    x = 547,063.00

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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.