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Finding the Fourth Proportional to 582,090, 873,135.20 and 261,867.80

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Solution

The fourth proportional to 582,090, 873,135.20 and 261,867.80 is: 392,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,090 : 873,135.20 = 261,867.80 : x
  2. Step 2: Convert to fraction form
    582,090/873,135.20 = 261,867.80/x
  3. Step 3: Cross multiply
    582,090x = 873,135.20 × 261,867.80
  4. Step 4: Simplify right side
    582,090x = 228,645,993,926.56
  5. Step 5: Solve for x
    x = 228,645,993,926.56/582,090
  6. Step 6: Final answer
    x = 392,801.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.