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Finding the Fourth Proportional to 558,765.45, 838,273.13 and 203,779.48

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Solution

The fourth proportional to 558,765.45, 838,273.13 and 203,779.48 is: 305,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,765.45 : 838,273.13 = 203,779.48 : x
  2. Step 2: Convert to fraction form
    558,765.45/838,273.13 = 203,779.48/x
  3. Step 3: Cross multiply
    558,765.45x = 838,273.13 × 203,779.48
  4. Step 4: Simplify right side
    558,765.45x = 170,822,862,529.37
  5. Step 5: Solve for x
    x = 170,822,862,529.37/558,765.45
  6. Step 6: Final answer
    x = 305,714.79

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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.