Home / 412,727.86-618,987.84-159,921.46

Finding the Fourth Proportional to 412,727.86, 618,987.84 and 159,921.46

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Solution

The fourth proportional to 412,727.86, 618,987.84 and 159,921.46 is: 239,841.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,727.86 : 618,987.84 = 159,921.46 : x
  2. Step 2: Convert to fraction form
    412,727.86/618,987.84 = 159,921.46/x
  3. Step 3: Cross multiply
    412,727.86x = 618,987.84 × 159,921.46
  4. Step 4: Simplify right side
    412,727.86x = 98,989,439,095.05
  5. Step 5: Solve for x
    x = 98,989,439,095.05/412,727.86
  6. Step 6: Final answer
    x = 239,841.91

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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.