Home / 398,868.76-598,308.38-132,629.29

Finding the Fourth Proportional to 398,868.76, 598,308.38 and 132,629.29

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Solution

The fourth proportional to 398,868.76, 598,308.38 and 132,629.29 is: 198,945.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,868.76 : 598,308.38 = 132,629.29 : x
  2. Step 2: Convert to fraction form
    398,868.76/598,308.38 = 132,629.29/x
  3. Step 3: Cross multiply
    398,868.76x = 598,308.38 × 132,629.29
  4. Step 4: Simplify right side
    398,868.76x = 79,353,211,985.76
  5. Step 5: Solve for x
    x = 79,353,211,985.76/398,868.76
  6. Step 6: Final answer
    x = 198,945.67

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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.