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Finding the Fourth Proportional to 648,243.16, 894,620.80 and 361,768.04

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Solution

The fourth proportional to 648,243.16, 894,620.80 and 361,768.04 is: 499,265.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,243.16 : 894,620.80 = 361,768.04 : x
  2. Step 2: Convert to fraction form
    648,243.16/894,620.80 = 361,768.04/x
  3. Step 3: Cross multiply
    648,243.16x = 894,620.80 × 361,768.04
  4. Step 4: Simplify right side
    648,243.16x = 323,645,213,359.23
  5. Step 5: Solve for x
    x = 323,645,213,359.23/648,243.16
  6. Step 6: Final answer
    x = 499,265.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.