Home / 720,200.75-1,080,301.95-187,721.33

Finding the Fourth Proportional to 720,200.75, 1,080,301.95 and 187,721.33

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Solution

The fourth proportional to 720,200.75, 1,080,301.95 and 187,721.33 is: 281,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,200.75 : 1,080,301.95 = 187,721.33 : x
  2. Step 2: Convert to fraction form
    720,200.75/1,080,301.95 = 187,721.33/x
  3. Step 3: Cross multiply
    720,200.75x = 1,080,301.95 × 187,721.33
  4. Step 4: Simplify right side
    720,200.75x = 202,795,713,454.08
  5. Step 5: Solve for x
    x = 202,795,713,454.08/720,200.75
  6. Step 6: Final answer
    x = 281,582.20

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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.