Home / 861,732.31-1,293,189.06-300,766.81

Finding the Fourth Proportional to 861,732.31, 1,293,189.06 and 300,766.81

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Solution

The fourth proportional to 861,732.31, 1,293,189.06 and 300,766.81 is: 451,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,732.31 : 1,293,189.06 = 300,766.81 : x
  2. Step 2: Convert to fraction form
    861,732.31/1,293,189.06 = 300,766.81/x
  3. Step 3: Cross multiply
    861,732.31x = 1,293,189.06 × 300,766.81
  4. Step 4: Simplify right side
    861,732.31x = 388,948,348,303.10
  5. Step 5: Solve for x
    x = 388,948,348,303.10/861,732.31
  6. Step 6: Final answer
    x = 451,356.35

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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.