Home / 680,542.92-1,020,907.78-231,143.14

Finding the Fourth Proportional to 680,542.92, 1,020,907.78 and 231,143.14

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Solution

The fourth proportional to 680,542.92, 1,020,907.78 and 231,143.14 is: 346,746.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,542.92 : 1,020,907.78 = 231,143.14 : x
  2. Step 2: Convert to fraction form
    680,542.92/1,020,907.78 = 231,143.14/x
  3. Step 3: Cross multiply
    680,542.92x = 1,020,907.78 × 231,143.14
  4. Step 4: Simplify right side
    680,542.92x = 235,975,829,919.63
  5. Step 5: Solve for x
    x = 235,975,829,919.63/680,542.92
  6. Step 6: Final answer
    x = 346,746.43

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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.