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Finding the Fourth Proportional to 663,743.84, 994,215.90 and 450,642.56

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Solution

The fourth proportional to 663,743.84, 994,215.90 and 450,642.56 is: 675,013.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,743.84 : 994,215.90 = 450,642.56 : x
  2. Step 2: Convert to fraction form
    663,743.84/994,215.90 = 450,642.56/x
  3. Step 3: Cross multiply
    663,743.84x = 994,215.90 × 450,642.56
  4. Step 4: Simplify right side
    663,743.84x = 448,035,998,368.70
  5. Step 5: Solve for x
    x = 448,035,998,368.70/663,743.84
  6. Step 6: Final answer
    x = 675,013.42

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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.