Home / 928,076.88-1,280,724.75-540,867.60

Finding the Fourth Proportional to 928,076.88, 1,280,724.75 and 540,867.60

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Solution

The fourth proportional to 928,076.88, 1,280,724.75 and 540,867.60 is: 746,384.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,076.88 : 1,280,724.75 = 540,867.60 : x
  2. Step 2: Convert to fraction form
    928,076.88/1,280,724.75 = 540,867.60/x
  3. Step 3: Cross multiply
    928,076.88x = 1,280,724.75 × 540,867.60
  4. Step 4: Simplify right side
    928,076.88x = 692,702,521,793.10
  5. Step 5: Solve for x
    x = 692,702,521,793.10/928,076.88
  6. Step 6: Final answer
    x = 746,384.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.