Home / 790,480.76-1,185,910.07-258,002.75

Finding the Fourth Proportional to 790,480.76, 1,185,910.07 and 258,002.75

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Solution

The fourth proportional to 790,480.76, 1,185,910.07 and 258,002.75 is: 387,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,480.76 : 1,185,910.07 = 258,002.75 : x
  2. Step 2: Convert to fraction form
    790,480.76/1,185,910.07 = 258,002.75/x
  3. Step 3: Cross multiply
    790,480.76x = 1,185,910.07 × 258,002.75
  4. Step 4: Simplify right side
    790,480.76x = 305,968,060,987.45
  5. Step 5: Solve for x
    x = 305,968,060,987.45/790,480.76
  6. Step 6: Final answer
    x = 387,065.79

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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.