Home / 817,239.78-1,226,212.22-311,952.47

Finding the Fourth Proportional to 817,239.78, 1,226,212.22 and 311,952.47

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Solution

The fourth proportional to 817,239.78, 1,226,212.22 and 311,952.47 is: 468,063.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,239.78 : 1,226,212.22 = 311,952.47 : x
  2. Step 2: Convert to fraction form
    817,239.78/1,226,212.22 = 311,952.47/x
  3. Step 3: Cross multiply
    817,239.78x = 1,226,212.22 × 311,952.47
  4. Step 4: Simplify right side
    817,239.78x = 382,519,925,422.00
  5. Step 5: Solve for x
    x = 382,519,925,422.00/817,239.78
  6. Step 6: Final answer
    x = 468,063.27

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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.