Home / 389,380.20-583,148.70-264,042.60

Finding the Fourth Proportional to 389,380.20, 583,148.70 and 264,042.60

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Solution

The fourth proportional to 389,380.20, 583,148.70 and 264,042.60 is: 395,438.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,380.20 : 583,148.70 = 264,042.60 : x
  2. Step 2: Convert to fraction form
    389,380.20/583,148.70 = 264,042.60/x
  3. Step 3: Cross multiply
    389,380.20x = 583,148.70 × 264,042.60
  4. Step 4: Simplify right side
    389,380.20x = 153,976,098,934.62
  5. Step 5: Solve for x
    x = 153,976,098,934.62/389,380.20
  6. Step 6: Final answer
    x = 395,438.95

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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.