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Finding the Fourth Proportional to 576,391.75, 795,422.84 and 318,264.39

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Solution

The fourth proportional to 576,391.75, 795,422.84 and 318,264.39 is: 439,206.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,391.75 : 795,422.84 = 318,264.39 : x
  2. Step 2: Convert to fraction form
    576,391.75/795,422.84 = 318,264.39/x
  3. Step 3: Cross multiply
    576,391.75x = 795,422.84 × 318,264.39
  4. Step 4: Simplify right side
    576,391.75x = 253,154,763,373.35
  5. Step 5: Solve for x
    x = 253,154,763,373.35/576,391.75
  6. Step 6: Final answer
    x = 439,206.09

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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.