Home / 399,033.12-598,622.64-132,768.36

Finding the Fourth Proportional to 399,033.12, 598,622.64 and 132,768.36

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Solution

The fourth proportional to 399,033.12, 598,622.64 and 132,768.36 is: 199,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,033.12 : 598,622.64 = 132,768.36 : x
  2. Step 2: Convert to fraction form
    399,033.12/598,622.64 = 132,768.36/x
  3. Step 3: Cross multiply
    399,033.12x = 598,622.64 × 132,768.36
  4. Step 4: Simplify right side
    399,033.12x = 79,478,146,171.67
  5. Step 5: Solve for x
    x = 79,478,146,171.67/399,033.12
  6. Step 6: Final answer
    x = 199,176.82

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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.