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Finding the Fourth Proportional to 445,585.78, 667,600.80 and 371,184.04

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Solution

The fourth proportional to 445,585.78, 667,600.80 and 371,184.04 is: 556,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,585.78 : 667,600.80 = 371,184.04 : x
  2. Step 2: Convert to fraction form
    445,585.78/667,600.80 = 371,184.04/x
  3. Step 3: Cross multiply
    445,585.78x = 667,600.80 × 371,184.04
  4. Step 4: Simplify right side
    445,585.78x = 247,802,762,051.23
  5. Step 5: Solve for x
    x = 247,802,762,051.23/445,585.78
  6. Step 6: Final answer
    x = 556,128.07

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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.