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Finding the Fourth Proportional to 404,354.92, 606,428.49 and 119,978.20

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Solution

The fourth proportional to 404,354.92, 606,428.49 and 119,978.20 is: 179,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,354.92 : 606,428.49 = 119,978.20 : x
  2. Step 2: Convert to fraction form
    404,354.92/606,428.49 = 119,978.20/x
  3. Step 3: Cross multiply
    404,354.92x = 606,428.49 × 119,978.20
  4. Step 4: Simplify right side
    404,354.92x = 72,758,198,658.92
  5. Step 5: Solve for x
    x = 72,758,198,658.92/404,354.92
  6. Step 6: Final answer
    x = 179,936.47

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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.