Home / 808,110.78-1,115,141.46-445,514.82

Finding the Fourth Proportional to 808,110.78, 1,115,141.46 and 445,514.82

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Solution

The fourth proportional to 808,110.78, 1,115,141.46 and 445,514.82 is: 614,782.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,110.78 : 1,115,141.46 = 445,514.82 : x
  2. Step 2: Convert to fraction form
    808,110.78/1,115,141.46 = 445,514.82/x
  3. Step 3: Cross multiply
    808,110.78x = 1,115,141.46 × 445,514.82
  4. Step 4: Simplify right side
    808,110.78x = 496,812,046,826.44
  5. Step 5: Solve for x
    x = 496,812,046,826.44/808,110.78
  6. Step 6: Final answer
    x = 614,782.11

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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.