Home / 767,280.80-1,150,489.20-293,981.60

Finding the Fourth Proportional to 767,280.80, 1,150,489.20 and 293,981.60

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Solution

The fourth proportional to 767,280.80, 1,150,489.20 and 293,981.60 is: 440,806.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,280.80 : 1,150,489.20 = 293,981.60 : x
  2. Step 2: Convert to fraction form
    767,280.80/1,150,489.20 = 293,981.60/x
  3. Step 3: Cross multiply
    767,280.80x = 1,150,489.20 × 293,981.60
  4. Step 4: Simplify right side
    767,280.80x = 338,222,655,798.72
  5. Step 5: Solve for x
    x = 338,222,655,798.72/767,280.80
  6. Step 6: Final answer
    x = 440,806.88

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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.