Home / 389,738.90-584,385.06-119,796.74

Finding the Fourth Proportional to 389,738.90, 584,385.06 and 119,796.74

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Solution

The fourth proportional to 389,738.90, 584,385.06 and 119,796.74 is: 179,626.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,738.90 : 584,385.06 = 119,796.74 : x
  2. Step 2: Convert to fraction form
    389,738.90/584,385.06 = 119,796.74/x
  3. Step 3: Cross multiply
    389,738.90x = 584,385.06 × 119,796.74
  4. Step 4: Simplify right side
    389,738.90x = 70,007,425,092.70
  5. Step 5: Solve for x
    x = 70,007,425,092.70/389,738.90
  6. Step 6: Final answer
    x = 179,626.48

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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.