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Finding the Fourth Proportional to 571,001.82, 855,568.34 and 345,679.30

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Solution

The fourth proportional to 571,001.82, 855,568.34 and 345,679.30 is: 517,953.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,001.82 : 855,568.34 = 345,679.30 : x
  2. Step 2: Convert to fraction form
    571,001.82/855,568.34 = 345,679.30/x
  3. Step 3: Cross multiply
    571,001.82x = 855,568.34 × 345,679.30
  4. Step 4: Simplify right side
    571,001.82x = 295,752,264,873.36
  5. Step 5: Solve for x
    x = 295,752,264,873.36/571,001.82
  6. Step 6: Final answer
    x = 517,953.28

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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.