Home / 787,523.40-1,181,868.30-521,195.40

Finding the Fourth Proportional to 787,523.40, 1,181,868.30 and 521,195.40

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Solution

The fourth proportional to 787,523.40, 1,181,868.30 and 521,195.40 is: 782,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,523.40 : 1,181,868.30 = 521,195.40 : x
  2. Step 2: Convert to fraction form
    787,523.40/1,181,868.30 = 521,195.40/x
  3. Step 3: Cross multiply
    787,523.40x = 1,181,868.30 × 521,195.40
  4. Step 4: Simplify right side
    787,523.40x = 615,984,321,365.82
  5. Step 5: Solve for x
    x = 615,984,321,365.82/787,523.40
  6. Step 6: Final answer
    x = 782,179.07

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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.