Home / 921,932.72-1,383,102.20-282,241.30

Finding the Fourth Proportional to 921,932.72, 1,383,102.20 and 282,241.30

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Solution

The fourth proportional to 921,932.72, 1,383,102.20 and 282,241.30 is: 423,424.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,932.72 : 1,383,102.20 = 282,241.30 : x
  2. Step 2: Convert to fraction form
    921,932.72/1,383,102.20 = 282,241.30/x
  3. Step 3: Cross multiply
    921,932.72x = 1,383,102.20 × 282,241.30
  4. Step 4: Simplify right side
    921,932.72x = 390,368,554,634.14
  5. Step 5: Solve for x
    x = 390,368,554,634.14/921,932.72
  6. Step 6: Final answer
    x = 423,424.12

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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.