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Finding the Fourth Proportional to 561,907.80, 842,757.06 and 162,449.76

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Solution

The fourth proportional to 561,907.80, 842,757.06 and 162,449.76 is: 243,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,907.80 : 842,757.06 = 162,449.76 : x
  2. Step 2: Convert to fraction form
    561,907.80/842,757.06 = 162,449.76/x
  3. Step 3: Cross multiply
    561,907.80x = 842,757.06 × 162,449.76
  4. Step 4: Simplify right side
    561,907.80x = 136,905,682,135.31
  5. Step 5: Solve for x
    x = 136,905,682,135.31/561,907.80
  6. Step 6: Final answer
    x = 243,644.39

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1.5x scale

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.