Home / 805,693.88-1,208,541.11-206,655.05

Finding the Fourth Proportional to 805,693.88, 1,208,541.11 and 206,655.05

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Solution

The fourth proportional to 805,693.88, 1,208,541.11 and 206,655.05 is: 309,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,693.88 : 1,208,541.11 = 206,655.05 : x
  2. Step 2: Convert to fraction form
    805,693.88/1,208,541.11 = 206,655.05/x
  3. Step 3: Cross multiply
    805,693.88x = 1,208,541.11 × 206,655.05
  4. Step 4: Simplify right side
    805,693.88x = 249,751,123,514.11
  5. Step 5: Solve for x
    x = 249,751,123,514.11/805,693.88
  6. Step 6: Final answer
    x = 309,982.65

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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.