Home / 728,724.60-1,093,086.90-651,960.90

Finding the Fourth Proportional to 728,724.60, 1,093,086.90 and 651,960.90

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Solution

The fourth proportional to 728,724.60, 1,093,086.90 and 651,960.90 is: 977,941.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,724.60 : 1,093,086.90 = 651,960.90 : x
  2. Step 2: Convert to fraction form
    728,724.60/1,093,086.90 = 651,960.90/x
  3. Step 3: Cross multiply
    728,724.60x = 1,093,086.90 × 651,960.90
  4. Step 4: Simplify right side
    728,724.60x = 712,649,919,102.21
  5. Step 5: Solve for x
    x = 712,649,919,102.21/728,724.60
  6. Step 6: Final answer
    x = 977,941.35

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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.