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Finding the Fourth Proportional to 436,400.96, 654,601.52 and 120,857.92

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Solution

The fourth proportional to 436,400.96, 654,601.52 and 120,857.92 is: 181,286.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,400.96 : 654,601.52 = 120,857.92 : x
  2. Step 2: Convert to fraction form
    436,400.96/654,601.52 = 120,857.92/x
  3. Step 3: Cross multiply
    436,400.96x = 654,601.52 × 120,857.92
  4. Step 4: Simplify right side
    436,400.96x = 79,113,778,136.04
  5. Step 5: Solve for x
    x = 79,113,778,136.04/436,400.96
  6. Step 6: Final answer
    x = 181,286.90

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1.5x scale

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.