Home / 770,990.76-1,155,862.62-322,055.46

Finding the Fourth Proportional to 770,990.76, 1,155,862.62 and 322,055.46

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Solution

The fourth proportional to 770,990.76, 1,155,862.62 and 322,055.46 is: 482,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,990.76 : 1,155,862.62 = 322,055.46 : x
  2. Step 2: Convert to fraction form
    770,990.76/1,155,862.62 = 322,055.46/x
  3. Step 3: Cross multiply
    770,990.76x = 1,155,862.62 × 322,055.46
  4. Step 4: Simplify right side
    770,990.76x = 372,251,867,780.91
  5. Step 5: Solve for x
    x = 372,251,867,780.91/770,990.76
  6. Step 6: Final answer
    x = 482,822.74

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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.