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Finding the Fourth Proportional to 561,036.45, 842,083.20 and 294,987.90

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Solution

The fourth proportional to 561,036.45, 842,083.20 and 294,987.90 is: 442,759.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,036.45 : 842,083.20 = 294,987.90 : x
  2. Step 2: Convert to fraction form
    561,036.45/842,083.20 = 294,987.90/x
  3. Step 3: Cross multiply
    561,036.45x = 842,083.20 × 294,987.90
  4. Step 4: Simplify right side
    561,036.45x = 248,404,354,793.28
  5. Step 5: Solve for x
    x = 248,404,354,793.28/561,036.45
  6. Step 6: Final answer
    x = 442,759.74

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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.