Home / 680,684.88-1,020,907.04-254,125.11

Finding the Fourth Proportional to 680,684.88, 1,020,907.04 and 254,125.11

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Solution

The fourth proportional to 680,684.88, 1,020,907.04 and 254,125.11 is: 381,142.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,684.88 : 1,020,907.04 = 254,125.11 : x
  2. Step 2: Convert to fraction form
    680,684.88/1,020,907.04 = 254,125.11/x
  3. Step 3: Cross multiply
    680,684.88x = 1,020,907.04 × 254,125.11
  4. Step 4: Simplify right side
    680,684.88x = 259,438,112,569.15
  5. Step 5: Solve for x
    x = 259,438,112,569.15/680,684.88
  6. Step 6: Final answer
    x = 381,142.76

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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.