Home / 777,782.20-1,165,751.70-328,502.20

Finding the Fourth Proportional to 777,782.20, 1,165,751.70 and 328,502.20

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Solution

The fourth proportional to 777,782.20, 1,165,751.70 and 328,502.20 is: 492,364.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,782.20 : 1,165,751.70 = 328,502.20 : x
  2. Step 2: Convert to fraction form
    777,782.20/1,165,751.70 = 328,502.20/x
  3. Step 3: Cross multiply
    777,782.20x = 1,165,751.70 × 328,502.20
  4. Step 4: Simplify right side
    777,782.20x = 382,951,998,103.74
  5. Step 5: Solve for x
    x = 382,951,998,103.74/777,782.20
  6. Step 6: Final answer
    x = 492,364.06

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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.