Home / 768,081.64-1,152,121.17-318,502.48

Finding the Fourth Proportional to 768,081.64, 1,152,121.17 and 318,502.48

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Solution

The fourth proportional to 768,081.64, 1,152,121.17 and 318,502.48 is: 477,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,081.64 : 1,152,121.17 = 318,502.48 : x
  2. Step 2: Convert to fraction form
    768,081.64/1,152,121.17 = 318,502.48/x
  3. Step 3: Cross multiply
    768,081.64x = 1,152,121.17 × 318,502.48
  4. Step 4: Simplify right side
    768,081.64x = 366,953,449,905.50
  5. Step 5: Solve for x
    x = 366,953,449,905.50/768,081.64
  6. Step 6: Final answer
    x = 477,753.19

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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.