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Finding the Fourth Proportional to 663,091.66, 914,667.63 and 404,850.70

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Solution

The fourth proportional to 663,091.66, 914,667.63 and 404,850.70 is: 558,450.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,091.66 : 914,667.63 = 404,850.70 : x
  2. Step 2: Convert to fraction form
    663,091.66/914,667.63 = 404,850.70/x
  3. Step 3: Cross multiply
    663,091.66x = 914,667.63 × 404,850.70
  4. Step 4: Simplify right side
    663,091.66x = 370,303,830,272.84
  5. Step 5: Solve for x
    x = 370,303,830,272.84/663,091.66
  6. Step 6: Final answer
    x = 558,450.44

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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.