Home / 412,337.12-618,602.47-128,013.14

Finding the Fourth Proportional to 412,337.12, 618,602.47 and 128,013.14

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Solution

The fourth proportional to 412,337.12, 618,602.47 and 128,013.14 is: 192,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,337.12 : 618,602.47 = 128,013.14 : x
  2. Step 2: Convert to fraction form
    412,337.12/618,602.47 = 128,013.14/x
  3. Step 3: Cross multiply
    412,337.12x = 618,602.47 × 128,013.14
  4. Step 4: Simplify right side
    412,337.12x = 79,189,245,822.93
  5. Step 5: Solve for x
    x = 79,189,245,822.93/412,337.12
  6. Step 6: Final answer
    x = 192,049.76

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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.