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Finding the Fourth Proportional to 571,399.38, 788,327.82 and 329,743.08

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Solution

The fourth proportional to 571,399.38, 788,327.82 and 329,743.08 is: 454,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,399.38 : 788,327.82 = 329,743.08 : x
  2. Step 2: Convert to fraction form
    571,399.38/788,327.82 = 329,743.08/x
  3. Step 3: Cross multiply
    571,399.38x = 788,327.82 × 329,743.08
  4. Step 4: Simplify right side
    571,399.38x = 259,945,643,416.49
  5. Step 5: Solve for x
    x = 259,945,643,416.49/571,399.38
  6. Step 6: Final answer
    x = 454,928.12

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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.