Home / 412,520.07-618,780.63-113,003.28

Finding the Fourth Proportional to 412,520.07, 618,780.63 and 113,003.28

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Solution

The fourth proportional to 412,520.07, 618,780.63 and 113,003.28 is: 169,505.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,520.07 : 618,780.63 = 113,003.28 : x
  2. Step 2: Convert to fraction form
    412,520.07/618,780.63 = 113,003.28/x
  3. Step 3: Cross multiply
    412,520.07x = 618,780.63 × 113,003.28
  4. Step 4: Simplify right side
    412,520.07x = 69,924,240,790.47
  5. Step 5: Solve for x
    x = 69,924,240,790.47/412,520.07
  6. Step 6: Final answer
    x = 169,505.06

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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.