Home / 778,701.60-1,167,188.40-305,229.60

Finding the Fourth Proportional to 778,701.60, 1,167,188.40 and 305,229.60

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Solution

The fourth proportional to 778,701.60, 1,167,188.40 and 305,229.60 is: 457,505.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,701.60 : 1,167,188.40 = 305,229.60 : x
  2. Step 2: Convert to fraction form
    778,701.60/1,167,188.40 = 305,229.60/x
  3. Step 3: Cross multiply
    778,701.60x = 1,167,188.40 × 305,229.60
  4. Step 4: Simplify right side
    778,701.60x = 356,260,448,456.64
  5. Step 5: Solve for x
    x = 356,260,448,456.64/778,701.60
  6. Step 6: Final answer
    x = 457,505.74

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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.