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Finding the Fourth Proportional to 587,238.29, 810,375.32 and 342,207.50

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Solution

The fourth proportional to 587,238.29, 810,375.32 and 342,207.50 is: 472,238.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,238.29 : 810,375.32 = 342,207.50 : x
  2. Step 2: Convert to fraction form
    587,238.29/810,375.32 = 342,207.50/x
  3. Step 3: Cross multiply
    587,238.29x = 810,375.32 × 342,207.50
  4. Step 4: Simplify right side
    587,238.29x = 277,316,512,318.90
  5. Step 5: Solve for x
    x = 277,316,512,318.90/587,238.29
  6. Step 6: Final answer
    x = 472,238.47

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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.