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Finding the Fourth Proportional to 490,042.53, 738,699.81 and 447,475.41

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Solution

The fourth proportional to 490,042.53, 738,699.81 and 447,475.41 is: 674,533.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,042.53 : 738,699.81 = 447,475.41 : x
  2. Step 2: Convert to fraction form
    490,042.53/738,699.81 = 447,475.41/x
  3. Step 3: Cross multiply
    490,042.53x = 738,699.81 × 447,475.41
  4. Step 4: Simplify right side
    490,042.53x = 330,549,998,668.64
  5. Step 5: Solve for x
    x = 330,549,998,668.64/490,042.53
  6. Step 6: Final answer
    x = 674,533.29

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.