Home / 720,689.27-1,081,034.10-188,205.73

Finding the Fourth Proportional to 720,689.27, 1,081,034.10 and 188,205.73

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Solution

The fourth proportional to 720,689.27, 1,081,034.10 and 188,205.73 is: 282,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,689.27 : 1,081,034.10 = 188,205.73 : x
  2. Step 2: Convert to fraction form
    720,689.27/1,081,034.10 = 188,205.73/x
  3. Step 3: Cross multiply
    720,689.27x = 1,081,034.10 × 188,205.73
  4. Step 4: Simplify right side
    720,689.27x = 203,456,809,242.81
  5. Step 5: Solve for x
    x = 203,456,809,242.81/720,689.27
  6. Step 6: Final answer
    x = 282,308.64

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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.