Home / 389,790.20-584,685.28-146,676.96

Finding the Fourth Proportional to 389,790.20, 584,685.28 and 146,676.96

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Solution

The fourth proportional to 389,790.20, 584,685.28 and 146,676.96 is: 220,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,790.20 : 584,685.28 = 146,676.96 : x
  2. Step 2: Convert to fraction form
    389,790.20/584,685.28 = 146,676.96/x
  3. Step 3: Cross multiply
    389,790.20x = 584,685.28 × 146,676.96
  4. Step 4: Simplify right side
    389,790.20x = 85,759,859,427.15
  5. Step 5: Solve for x
    x = 85,759,859,427.15/389,790.20
  6. Step 6: Final answer
    x = 220,015.43

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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.