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Finding the Fourth Proportional to 404,860.64, 606,478.72 and 371,791.04

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Solution

The fourth proportional to 404,860.64, 606,478.72 and 371,791.04 is: 556,940.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,860.64 : 606,478.72 = 371,791.04 : x
  2. Step 2: Convert to fraction form
    404,860.64/606,478.72 = 371,791.04/x
  3. Step 3: Cross multiply
    404,860.64x = 606,478.72 × 371,791.04
  4. Step 4: Simplify right side
    404,860.64x = 225,483,354,046.67
  5. Step 5: Solve for x
    x = 225,483,354,046.67/404,860.64
  6. Step 6: Final answer
    x = 556,940.66

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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.