Home / 680,589.12-1,021,114.56-301,458.90

Finding the Fourth Proportional to 680,589.12, 1,021,114.56 and 301,458.90

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Solution

The fourth proportional to 680,589.12, 1,021,114.56 and 301,458.90 is: 452,290.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,589.12 : 1,021,114.56 = 301,458.90 : x
  2. Step 2: Convert to fraction form
    680,589.12/1,021,114.56 = 301,458.90/x
  3. Step 3: Cross multiply
    680,589.12x = 1,021,114.56 × 301,458.90
  4. Step 4: Simplify right side
    680,589.12x = 307,824,072,031.58
  5. Step 5: Solve for x
    x = 307,824,072,031.58/680,589.12
  6. Step 6: Final answer
    x = 452,290.62

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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.