Home / 641,119.60-961,765.80-220,524.40

Finding the Fourth Proportional to 641,119.60, 961,765.80 and 220,524.40

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Solution

The fourth proportional to 641,119.60, 961,765.80 and 220,524.40 is: 330,816.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,119.60 : 961,765.80 = 220,524.40 : x
  2. Step 2: Convert to fraction form
    641,119.60/961,765.80 = 220,524.40/x
  3. Step 3: Cross multiply
    641,119.60x = 961,765.80 × 220,524.40
  4. Step 4: Simplify right side
    641,119.60x = 212,092,825,985.52
  5. Step 5: Solve for x
    x = 212,092,825,985.52/641,119.60
  6. Step 6: Final answer
    x = 330,816.32

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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.