Home / 538,726.24-743,441.97-309,298.33

Finding the Fourth Proportional to 538,726.24, 743,441.97 and 309,298.33

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Solution

The fourth proportional to 538,726.24, 743,441.97 and 309,298.33 is: 426,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,726.24 : 743,441.97 = 309,298.33 : x
  2. Step 2: Convert to fraction form
    538,726.24/743,441.97 = 309,298.33/x
  3. Step 3: Cross multiply
    538,726.24x = 743,441.97 × 309,298.33
  4. Step 4: Simplify right side
    538,726.24x = 229,945,359,074.17
  5. Step 5: Solve for x
    x = 229,945,359,074.17/538,726.24
  6. Step 6: Final answer
    x = 426,831.55

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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.