Home / 398,868.26-598,307.63-132,628.79

Finding the Fourth Proportional to 398,868.26, 598,307.63 and 132,628.79

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Solution

The fourth proportional to 398,868.26, 598,307.63 and 132,628.79 is: 198,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,868.26 : 598,307.63 = 132,628.79 : x
  2. Step 2: Convert to fraction form
    398,868.26/598,307.63 = 132,628.79/x
  3. Step 3: Cross multiply
    398,868.26x = 598,307.63 × 132,628.79
  4. Step 4: Simplify right side
    398,868.26x = 79,352,817,847.29
  5. Step 5: Solve for x
    x = 79,352,817,847.29/398,868.26
  6. Step 6: Final answer
    x = 198,944.93

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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.