Home / 412,629.98-618,947.10-187,833.20

Finding the Fourth Proportional to 412,629.98, 618,947.10 and 187,833.20

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Solution

The fourth proportional to 412,629.98, 618,947.10 and 187,833.20 is: 281,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,629.98 : 618,947.10 = 187,833.20 : x
  2. Step 2: Convert to fraction form
    412,629.98/618,947.10 = 187,833.20/x
  3. Step 3: Cross multiply
    412,629.98x = 618,947.10 × 187,833.20
  4. Step 4: Simplify right side
    412,629.98x = 116,258,814,423.72
  5. Step 5: Solve for x
    x = 116,258,814,423.72/412,629.98
  6. Step 6: Final answer
    x = 281,750.77

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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.