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Finding the Fourth Proportional to 561,902.88, 842,854.56 and 262,284

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Solution

The fourth proportional to 561,902.88, 842,854.56 and 262,284 is: 393,426.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,902.88 : 842,854.56 = 262,284 : x
  2. Step 2: Convert to fraction form
    561,902.88/842,854.56 = 262,284/x
  3. Step 3: Cross multiply
    561,902.88x = 842,854.56 × 262,284
  4. Step 4: Simplify right side
    561,902.88x = 221,067,265,415.04
  5. Step 5: Solve for x
    x = 221,067,265,415.04/561,902.88
  6. Step 6: Final answer
    x = 393,426.11

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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.