Home / 928,860-1,393,231.06-329,742.28

Finding the Fourth Proportional to 928,860, 1,393,231.06 and 329,742.28

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Solution

The fourth proportional to 928,860, 1,393,231.06 and 329,742.28 is: 494,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,860 : 1,393,231.06 = 329,742.28 : x
  2. Step 2: Convert to fraction form
    928,860/1,393,231.06 = 329,742.28/x
  3. Step 3: Cross multiply
    928,860x = 1,393,231.06 × 329,742.28
  4. Step 4: Simplify right side
    928,860x = 459,407,186,291.22
  5. Step 5: Solve for x
    x = 459,407,186,291.22/928,860
  6. Step 6: Final answer
    x = 494,592.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.