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Finding the Fourth Proportional to 582,589.08, 872,993.40 and 392,346

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Solution

The fourth proportional to 582,589.08, 872,993.40 and 392,346 is: 587,919.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,589.08 : 872,993.40 = 392,346 : x
  2. Step 2: Convert to fraction form
    582,589.08/872,993.40 = 392,346/x
  3. Step 3: Cross multiply
    582,589.08x = 872,993.40 × 392,346
  4. Step 4: Simplify right side
    582,589.08x = 342,515,468,516.40
  5. Step 5: Solve for x
    x = 342,515,468,516.40/582,589.08
  6. Step 6: Final answer
    x = 587,919.48

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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.