Home / 389,631.80-584,447.70-327,630.35

Finding the Fourth Proportional to 389,631.80, 584,447.70 and 327,630.35

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Solution

The fourth proportional to 389,631.80, 584,447.70 and 327,630.35 is: 491,445.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,631.80 : 584,447.70 = 327,630.35 : x
  2. Step 2: Convert to fraction form
    389,631.80/584,447.70 = 327,630.35/x
  3. Step 3: Cross multiply
    389,631.80x = 584,447.70 × 327,630.35
  4. Step 4: Simplify right side
    389,631.80x = 191,482,804,507.70
  5. Step 5: Solve for x
    x = 191,482,804,507.70/389,631.80
  6. Step 6: Final answer
    x = 491,445.53

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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.