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Finding the Fourth Proportional to 538,667.39, 743,338.22 and 293,646.85

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Solution

The fourth proportional to 538,667.39, 743,338.22 and 293,646.85 is: 405,220.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,667.39 : 743,338.22 = 293,646.85 : x
  2. Step 2: Convert to fraction form
    538,667.39/743,338.22 = 293,646.85/x
  3. Step 3: Cross multiply
    538,667.39x = 743,338.22 × 293,646.85
  4. Step 4: Simplify right side
    538,667.39x = 218,278,926,787.61
  5. Step 5: Solve for x
    x = 218,278,926,787.61/538,667.39
  6. Step 6: Final answer
    x = 405,220.24

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1.5x scale

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.