Home / 766,800.20-1,150,200.30-542,851.40

Finding the Fourth Proportional to 766,800.20, 1,150,200.30 and 542,851.40

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Solution

The fourth proportional to 766,800.20, 1,150,200.30 and 542,851.40 is: 814,277.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,800.20 : 1,150,200.30 = 542,851.40 : x
  2. Step 2: Convert to fraction form
    766,800.20/1,150,200.30 = 542,851.40/x
  3. Step 3: Cross multiply
    766,800.20x = 1,150,200.30 × 542,851.40
  4. Step 4: Simplify right side
    766,800.20x = 624,387,843,135.42
  5. Step 5: Solve for x
    x = 624,387,843,135.42/766,800.20
  6. Step 6: Final answer
    x = 814,277.10

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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.