Home / 389,437.20-584,112.60-108,982.80

Finding the Fourth Proportional to 389,437.20, 584,112.60 and 108,982.80

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Solution

The fourth proportional to 389,437.20, 584,112.60 and 108,982.80 is: 163,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,437.20 : 584,112.60 = 108,982.80 : x
  2. Step 2: Convert to fraction form
    389,437.20/584,112.60 = 108,982.80/x
  3. Step 3: Cross multiply
    389,437.20x = 584,112.60 × 108,982.80
  4. Step 4: Simplify right side
    389,437.20x = 63,658,226,663.28
  5. Step 5: Solve for x
    x = 63,658,226,663.28/389,437.20
  6. Step 6: Final answer
    x = 163,462.11

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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.