Home / 412,720.80-618,977.28-159,914.52

Finding the Fourth Proportional to 412,720.80, 618,977.28 and 159,914.52

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Solution

The fourth proportional to 412,720.80, 618,977.28 and 159,914.52 is: 239,831.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,720.80 : 618,977.28 = 159,914.52 : x
  2. Step 2: Convert to fraction form
    412,720.80/618,977.28 = 159,914.52/x
  3. Step 3: Cross multiply
    412,720.80x = 618,977.28 × 159,914.52
  4. Step 4: Simplify right side
    412,720.80x = 98,983,454,622.11
  5. Step 5: Solve for x
    x = 98,983,454,622.11/412,720.80
  6. Step 6: Final answer
    x = 239,831.51

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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.