Home / 680,731.09-1,020,462.31-231,144.55

Finding the Fourth Proportional to 680,731.09, 1,020,462.31 and 231,144.55

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Solution

The fourth proportional to 680,731.09, 1,020,462.31 and 231,144.55 is: 346,501.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,731.09 : 1,020,462.31 = 231,144.55 : x
  2. Step 2: Convert to fraction form
    680,731.09/1,020,462.31 = 231,144.55/x
  3. Step 3: Cross multiply
    680,731.09x = 1,020,462.31 × 231,144.55
  4. Step 4: Simplify right side
    680,731.09x = 235,874,301,436.91
  5. Step 5: Solve for x
    x = 235,874,301,436.91/680,731.09
  6. Step 6: Final answer
    x = 346,501.44

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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.