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Finding the Fourth Proportional to 839,295, 1,158,227.64 and 457,321.68

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Solution

The fourth proportional to 839,295, 1,158,227.64 and 457,321.68 is: 631,104.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,295 : 1,158,227.64 = 457,321.68 : x
  2. Step 2: Convert to fraction form
    839,295/1,158,227.64 = 457,321.68/x
  3. Step 3: Cross multiply
    839,295x = 1,158,227.64 × 457,321.68
  4. Step 4: Simplify right side
    839,295x = 529,682,610,147.24
  5. Step 5: Solve for x
    x = 529,682,610,147.24/839,295
  6. Step 6: Final answer
    x = 631,104.21

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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.