Home / 680,521.47-1,021,491.56-301,708.22

Finding the Fourth Proportional to 680,521.47, 1,021,491.56 and 301,708.22

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Solution

The fourth proportional to 680,521.47, 1,021,491.56 and 301,708.22 is: 452,876.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,521.47 : 1,021,491.56 = 301,708.22 : x
  2. Step 2: Convert to fraction form
    680,521.47/1,021,491.56 = 301,708.22/x
  3. Step 3: Cross multiply
    680,521.47x = 1,021,491.56 × 301,708.22
  4. Step 4: Simplify right side
    680,521.47x = 308,192,403,620.62
  5. Step 5: Solve for x
    x = 308,192,403,620.62/680,521.47
  6. Step 6: Final answer
    x = 452,876.83

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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.