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Finding the Fourth Proportional to 648,209.28, 894,446.28 and 361,741.44

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Solution

The fourth proportional to 648,209.28, 894,446.28 and 361,741.44 is: 499,157.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,209.28 : 894,446.28 = 361,741.44 : x
  2. Step 2: Convert to fraction form
    648,209.28/894,446.28 = 361,741.44/x
  3. Step 3: Cross multiply
    648,209.28x = 894,446.28 × 361,741.44
  4. Step 4: Simplify right side
    648,209.28x = 323,558,285,329.84
  5. Step 5: Solve for x
    x = 323,558,285,329.84/648,209.28
  6. Step 6: Final answer
    x = 499,157.13

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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.