Home / 412,371.27-618,524.10-128,050.34

Finding the Fourth Proportional to 412,371.27, 618,524.10 and 128,050.34

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Solution

The fourth proportional to 412,371.27, 618,524.10 and 128,050.34 is: 192,065.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,371.27 : 618,524.10 = 128,050.34 : x
  2. Step 2: Convert to fraction form
    412,371.27/618,524.10 = 128,050.34/x
  3. Step 3: Cross multiply
    412,371.27x = 618,524.10 × 128,050.34
  4. Step 4: Simplify right side
    412,371.27x = 79,202,218,210.57
  5. Step 5: Solve for x
    x = 79,202,218,210.57/412,371.27
  6. Step 6: Final answer
    x = 192,065.32

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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.