Home / 389,977.38-584,999.18-109,494.63

Finding the Fourth Proportional to 389,977.38, 584,999.18 and 109,494.63

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Solution

The fourth proportional to 389,977.38, 584,999.18 and 109,494.63 is: 164,251.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,977.38 : 584,999.18 = 109,494.63 : x
  2. Step 2: Convert to fraction form
    389,977.38/584,999.18 = 109,494.63/x
  3. Step 3: Cross multiply
    389,977.38x = 584,999.18 × 109,494.63
  4. Step 4: Simplify right side
    389,977.38x = 64,054,270,500.64
  5. Step 5: Solve for x
    x = 64,054,270,500.64/389,977.38
  6. Step 6: Final answer
    x = 164,251.24

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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.