Home / 764,021.60-1,145,276.40-337,788.80

Finding the Fourth Proportional to 764,021.60, 1,145,276.40 and 337,788.80

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Solution

The fourth proportional to 764,021.60, 1,145,276.40 and 337,788.80 is: 506,348.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,021.60 : 1,145,276.40 = 337,788.80 : x
  2. Step 2: Convert to fraction form
    764,021.60/1,145,276.40 = 337,788.80/x
  3. Step 3: Cross multiply
    764,021.60x = 1,145,276.40 × 337,788.80
  4. Step 4: Simplify right side
    764,021.60x = 386,861,540,824.32
  5. Step 5: Solve for x
    x = 386,861,540,824.32/764,021.60
  6. Step 6: Final answer
    x = 506,348.96

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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.