Home / 680,730.09-1,020,460.82-231,143.55

Finding the Fourth Proportional to 680,730.09, 1,020,460.82 and 231,143.55

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Solution

The fourth proportional to 680,730.09, 1,020,460.82 and 231,143.55 is: 346,499.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,730.09 : 1,020,460.82 = 231,143.55 : x
  2. Step 2: Convert to fraction form
    680,730.09/1,020,460.82 = 231,143.55/x
  3. Step 3: Cross multiply
    680,730.09x = 1,020,460.82 × 231,143.55
  4. Step 4: Simplify right side
    680,730.09x = 235,872,935,414.99
  5. Step 5: Solve for x
    x = 235,872,935,414.99/680,730.09
  6. Step 6: Final answer
    x = 346,499.94

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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.