Home / 412,395.18-618,150.51-270,186.72

Finding the Fourth Proportional to 412,395.18, 618,150.51 and 270,186.72

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Solution

The fourth proportional to 412,395.18, 618,150.51 and 270,186.72 is: 404,990.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,395.18 : 618,150.51 = 270,186.72 : x
  2. Step 2: Convert to fraction form
    412,395.18/618,150.51 = 270,186.72/x
  3. Step 3: Cross multiply
    412,395.18x = 618,150.51 × 270,186.72
  4. Step 4: Simplify right side
    412,395.18x = 167,016,058,763.23
  5. Step 5: Solve for x
    x = 167,016,058,763.23/412,395.18
  6. Step 6: Final answer
    x = 404,990.33

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1.5x scale

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.