Home / 764,761.60-1,147,140.33-284,978.48

Finding the Fourth Proportional to 764,761.60, 1,147,140.33 and 284,978.48

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Solution

The fourth proportional to 764,761.60, 1,147,140.33 and 284,978.48 is: 427,466.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,761.60 : 1,147,140.33 = 284,978.48 : x
  2. Step 2: Convert to fraction form
    764,761.60/1,147,140.33 = 284,978.48/x
  3. Step 3: Cross multiply
    764,761.60x = 1,147,140.33 × 284,978.48
  4. Step 4: Simplify right side
    764,761.60x = 326,910,306,416.57
  5. Step 5: Solve for x
    x = 326,910,306,416.57/764,761.60
  6. Step 6: Final answer
    x = 427,466.95

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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.