Home / 921,940.74-1,383,114.20-282,249.32

Finding the Fourth Proportional to 921,940.74, 1,383,114.20 and 282,249.32

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Solution

The fourth proportional to 921,940.74, 1,383,114.20 and 282,249.32 is: 423,436.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,940.74 : 1,383,114.20 = 282,249.32 : x
  2. Step 2: Convert to fraction form
    921,940.74/1,383,114.20 = 282,249.32/x
  3. Step 3: Cross multiply
    921,940.74x = 1,383,114.20 × 282,249.32
  4. Step 4: Simplify right side
    921,940.74x = 390,383,034,105.53
  5. Step 5: Solve for x
    x = 390,383,034,105.53/921,940.74
  6. Step 6: Final answer
    x = 423,436.15

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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.