Home / 766,906.20-1,149,047.10-486,095.40

Finding the Fourth Proportional to 766,906.20, 1,149,047.10 and 486,095.40

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Solution

The fourth proportional to 766,906.20, 1,149,047.10 and 486,095.40 is: 728,311.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,906.20 : 1,149,047.10 = 486,095.40 : x
  2. Step 2: Convert to fraction form
    766,906.20/1,149,047.10 = 486,095.40/x
  3. Step 3: Cross multiply
    766,906.20x = 1,149,047.10 × 486,095.40
  4. Step 4: Simplify right side
    766,906.20x = 558,546,509,693.34
  5. Step 5: Solve for x
    x = 558,546,509,693.34/766,906.20
  6. Step 6: Final answer
    x = 728,311.38

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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.