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Finding the Fourth Proportional to 436,377.78, 654,492.51 and 120,760.92

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Solution

The fourth proportional to 436,377.78, 654,492.51 and 120,760.92 is: 181,120.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,377.78 : 654,492.51 = 120,760.92 : x
  2. Step 2: Convert to fraction form
    436,377.78/654,492.51 = 120,760.92/x
  3. Step 3: Cross multiply
    436,377.78x = 654,492.51 × 120,760.92
  4. Step 4: Simplify right side
    436,377.78x = 79,037,117,640.71
  5. Step 5: Solve for x
    x = 79,037,117,640.71/436,377.78
  6. Step 6: Final answer
    x = 181,120.86

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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.