Home / 778,708.80-1,167,832.80-305,121.60

Finding the Fourth Proportional to 778,708.80, 1,167,832.80 and 305,121.60

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Solution

The fourth proportional to 778,708.80, 1,167,832.80 and 305,121.60 is: 457,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,708.80 : 1,167,832.80 = 305,121.60 : x
  2. Step 2: Convert to fraction form
    778,708.80/1,167,832.80 = 305,121.60/x
  3. Step 3: Cross multiply
    778,708.80x = 1,167,832.80 × 305,121.60
  4. Step 4: Simplify right side
    778,708.80x = 356,331,012,468.48
  5. Step 5: Solve for x
    x = 356,331,012,468.48/778,708.80
  6. Step 6: Final answer
    x = 457,592.12

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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.