Home / 778,419.18-1,167,711.86-329,185.46

Finding the Fourth Proportional to 778,419.18, 1,167,711.86 and 329,185.46

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Solution

The fourth proportional to 778,419.18, 1,167,711.86 and 329,185.46 is: 493,813.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,419.18 : 1,167,711.86 = 329,185.46 : x
  2. Step 2: Convert to fraction form
    778,419.18/1,167,711.86 = 329,185.46/x
  3. Step 3: Cross multiply
    778,419.18x = 1,167,711.86 × 329,185.46
  4. Step 4: Simplify right side
    778,419.18x = 384,393,769,523.80
  5. Step 5: Solve for x
    x = 384,393,769,523.80/778,419.18
  6. Step 6: Final answer
    x = 493,813.33

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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.