Home / 861,716.22-1,293,164.76-300,750.72

Finding the Fourth Proportional to 861,716.22, 1,293,164.76 and 300,750.72

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Solution

The fourth proportional to 861,716.22, 1,293,164.76 and 300,750.72 is: 451,332.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,716.22 : 1,293,164.76 = 300,750.72 : x
  2. Step 2: Convert to fraction form
    861,716.22/1,293,164.76 = 300,750.72/x
  3. Step 3: Cross multiply
    861,716.22x = 1,293,164.76 × 300,750.72
  4. Step 4: Simplify right side
    861,716.22x = 388,920,232,648.63
  5. Step 5: Solve for x
    x = 388,920,232,648.63/861,716.22
  6. Step 6: Final answer
    x = 451,332.15

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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.