Home / 762,504.80-1,142,959.16-256,891.05

Finding the Fourth Proportional to 762,504.80, 1,142,959.16 and 256,891.05

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Solution

The fourth proportional to 762,504.80, 1,142,959.16 and 256,891.05 is: 385,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,504.80 : 1,142,959.16 = 256,891.05 : x
  2. Step 2: Convert to fraction form
    762,504.80/1,142,959.16 = 256,891.05/x
  3. Step 3: Cross multiply
    762,504.80x = 1,142,959.16 × 256,891.05
  4. Step 4: Simplify right side
    762,504.80x = 293,615,979,361.75
  5. Step 5: Solve for x
    x = 293,615,979,361.75/762,504.80
  6. Step 6: Final answer
    x = 385,067.72

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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.