Home / 769,451.60-1,152,427.80-486,016.40

Finding the Fourth Proportional to 769,451.60, 1,152,427.80 and 486,016.40

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Solution

The fourth proportional to 769,451.60, 1,152,427.80 and 486,016.40 is: 727,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,451.60 : 1,152,427.80 = 486,016.40 : x
  2. Step 2: Convert to fraction form
    769,451.60/1,152,427.80 = 486,016.40/x
  3. Step 3: Cross multiply
    769,451.60x = 1,152,427.80 × 486,016.40
  4. Step 4: Simplify right side
    769,451.60x = 560,098,810,615.92
  5. Step 5: Solve for x
    x = 560,098,810,615.92/769,451.60
  6. Step 6: Final answer
    x = 727,919.48

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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.