Home / 1,091,331.60-1,640,496.60-777,958.80

Finding the Fourth Proportional to 1,091,331.60, 1,640,496.60 and 777,958.80

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Solution

The fourth proportional to 1,091,331.60, 1,640,496.60 and 777,958.80 is: 1,169,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,331.60 : 1,640,496.60 = 777,958.80 : x
  2. Step 2: Convert to fraction form
    1,091,331.60/1,640,496.60 = 777,958.80/x
  3. Step 3: Cross multiply
    1,091,331.60x = 1,640,496.60 × 777,958.80
  4. Step 4: Simplify right side
    1,091,331.60x = 1,276,238,766,340.08
  5. Step 5: Solve for x
    x = 1,276,238,766,340.08/1,091,331.60
  6. Step 6: Final answer
    x = 1,169,432.61

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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.