Home / 766,242.60-1,149,485.40-260,851.20

Finding the Fourth Proportional to 766,242.60, 1,149,485.40 and 260,851.20

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Solution

The fourth proportional to 766,242.60, 1,149,485.40 and 260,851.20 is: 391,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,242.60 : 1,149,485.40 = 260,851.20 : x
  2. Step 2: Convert to fraction form
    766,242.60/1,149,485.40 = 260,851.20/x
  3. Step 3: Cross multiply
    766,242.60x = 1,149,485.40 × 260,851.20
  4. Step 4: Simplify right side
    766,242.60x = 299,844,645,972.48
  5. Step 5: Solve for x
    x = 299,844,645,972.48/766,242.60
  6. Step 6: Final answer
    x = 391,318.16

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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.