Home / 778,657.20-1,167,337.80-329,722.80

Finding the Fourth Proportional to 778,657.20, 1,167,337.80 and 329,722.80

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Solution

The fourth proportional to 778,657.20, 1,167,337.80 and 329,722.80 is: 494,309.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,657.20 : 1,167,337.80 = 329,722.80 : x
  2. Step 2: Convert to fraction form
    778,657.20/1,167,337.80 = 329,722.80/x
  3. Step 3: Cross multiply
    778,657.20x = 1,167,337.80 × 329,722.80
  4. Step 4: Simplify right side
    778,657.20x = 384,897,887,961.84
  5. Step 5: Solve for x
    x = 384,897,887,961.84/778,657.20
  6. Step 6: Final answer
    x = 494,309.80

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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.