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Finding the Fourth Proportional to 389,446.20, 584,169.30 and 370,200.60

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Solution

The fourth proportional to 389,446.20, 584,169.30 and 370,200.60 is: 555,300.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,446.20 : 584,169.30 = 370,200.60 : x
  2. Step 2: Convert to fraction form
    389,446.20/584,169.30 = 370,200.60/x
  3. Step 3: Cross multiply
    389,446.20x = 584,169.30 × 370,200.60
  4. Step 4: Simplify right side
    389,446.20x = 216,259,825,361.58
  5. Step 5: Solve for x
    x = 216,259,825,361.58/389,446.20
  6. Step 6: Final answer
    x = 555,300.90

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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.