Home / 639,264.36-959,052.74-212,799.36

Finding the Fourth Proportional to 639,264.36, 959,052.74 and 212,799.36

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Solution

The fourth proportional to 639,264.36, 959,052.74 and 212,799.36 is: 319,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,264.36 : 959,052.74 = 212,799.36 : x
  2. Step 2: Convert to fraction form
    639,264.36/959,052.74 = 212,799.36/x
  3. Step 3: Cross multiply
    639,264.36x = 959,052.74 × 212,799.36
  4. Step 4: Simplify right side
    639,264.36x = 204,085,809,278.25
  5. Step 5: Solve for x
    x = 204,085,809,278.25/639,264.36
  6. Step 6: Final answer
    x = 319,251.04

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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.