Home / 987,138.44-1,362,251.46-534,429.32

Finding the Fourth Proportional to 987,138.44, 1,362,251.46 and 534,429.32

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Solution

The fourth proportional to 987,138.44, 1,362,251.46 and 534,429.32 is: 737,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,138.44 : 1,362,251.46 = 534,429.32 : x
  2. Step 2: Convert to fraction form
    987,138.44/1,362,251.46 = 534,429.32/x
  3. Step 3: Cross multiply
    987,138.44x = 1,362,251.46 × 534,429.32
  4. Step 4: Simplify right side
    987,138.44x = 728,027,121,436.81
  5. Step 5: Solve for x
    x = 728,027,121,436.81/987,138.44
  6. Step 6: Final answer
    x = 737,512.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.