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Finding the Fourth Proportional to 571,063.92, 787,773.41 and 387,240.33

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Solution

The fourth proportional to 571,063.92, 787,773.41 and 387,240.33 is: 534,191.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,063.92 : 787,773.41 = 387,240.33 : x
  2. Step 2: Convert to fraction form
    571,063.92/787,773.41 = 387,240.33/x
  3. Step 3: Cross multiply
    571,063.92x = 787,773.41 × 387,240.33
  4. Step 4: Simplify right side
    571,063.92x = 305,057,633,317.42
  5. Step 5: Solve for x
    x = 305,057,633,317.42/571,063.92
  6. Step 6: Final answer
    x = 534,191.75

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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.