Home / 442,507.20-663,756.48-126,965.76

Finding the Fourth Proportional to 442,507.20, 663,756.48 and 126,965.76

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Solution

The fourth proportional to 442,507.20, 663,756.48 and 126,965.76 is: 190,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,507.20 : 663,756.48 = 126,965.76 : x
  2. Step 2: Convert to fraction form
    442,507.20/663,756.48 = 126,965.76/x
  3. Step 3: Cross multiply
    442,507.20x = 663,756.48 × 126,965.76
  4. Step 4: Simplify right side
    442,507.20x = 84,274,345,938.12
  5. Step 5: Solve for x
    x = 84,274,345,938.12/442,507.20
  6. Step 6: Final answer
    x = 190,447.40

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1.5x scale

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.