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Finding the Fourth Proportional to 544,390.20, 816,751.62 and 278,337.60

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Solution

The fourth proportional to 544,390.20, 816,751.62 and 278,337.60 is: 417,591.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,390.20 : 816,751.62 = 278,337.60 : x
  2. Step 2: Convert to fraction form
    544,390.20/816,751.62 = 278,337.60/x
  3. Step 3: Cross multiply
    544,390.20x = 816,751.62 × 278,337.60
  4. Step 4: Simplify right side
    544,390.20x = 227,332,685,706.91
  5. Step 5: Solve for x
    x = 227,332,685,706.91/544,390.20
  6. Step 6: Final answer
    x = 417,591.44

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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.