Home / 1,268,282.41-1,750,225.65-687,507.80

Finding the Fourth Proportional to 1,268,282.41, 1,750,225.65 and 687,507.80

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Solution

The fourth proportional to 1,268,282.41, 1,750,225.65 and 687,507.80 is: 948,758.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,282.41 : 1,750,225.65 = 687,507.80 : x
  2. Step 2: Convert to fraction form
    1,268,282.41/1,750,225.65 = 687,507.80/x
  3. Step 3: Cross multiply
    1,268,282.41x = 1,750,225.65 × 687,507.80
  4. Step 4: Simplify right side
    1,268,282.41x = 1,203,293,786,584.42
  5. Step 5: Solve for x
    x = 1,203,293,786,584.42/1,268,282.41
  6. Step 6: Final answer
    x = 948,758.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.