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Finding the Fourth Proportional to 663,313.33, 994,872.80 and 326,263.51

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Solution

The fourth proportional to 663,313.33, 994,872.80 and 326,263.51 is: 489,347.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,313.33 : 994,872.80 = 326,263.51 : x
  2. Step 2: Convert to fraction form
    663,313.33/994,872.80 = 326,263.51/x
  3. Step 3: Cross multiply
    663,313.33x = 994,872.80 × 326,263.51
  4. Step 4: Simplify right side
    663,313.33x = 324,590,690,100.21
  5. Step 5: Solve for x
    x = 324,590,690,100.21/663,313.33
  6. Step 6: Final answer
    x = 489,347.46

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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.