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Finding the Fourth Proportional to 552,215.88, 762,047.87 and 307,199.52

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Solution

The fourth proportional to 552,215.88, 762,047.87 and 307,199.52 is: 423,929.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,215.88 : 762,047.87 = 307,199.52 : x
  2. Step 2: Convert to fraction form
    552,215.88/762,047.87 = 307,199.52/x
  3. Step 3: Cross multiply
    552,215.88x = 762,047.87 × 307,199.52
  4. Step 4: Simplify right side
    552,215.88x = 234,100,738,345.03
  5. Step 5: Solve for x
    x = 234,100,738,345.03/552,215.88
  6. Step 6: Final answer
    x = 423,929.75

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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.