Home / 451,789.87-623,365.35-270,432.85

Finding the Fourth Proportional to 451,789.87, 623,365.35 and 270,432.85

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Solution

The fourth proportional to 451,789.87, 623,365.35 and 270,432.85 is: 373,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,789.87 : 623,365.35 = 270,432.85 : x
  2. Step 2: Convert to fraction form
    451,789.87/623,365.35 = 270,432.85/x
  3. Step 3: Cross multiply
    451,789.87x = 623,365.35 × 270,432.85
  4. Step 4: Simplify right side
    451,789.87x = 168,578,468,191.75
  5. Step 5: Solve for x
    x = 168,578,468,191.75/451,789.87
  6. Step 6: Final answer
    x = 373,134.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.