Home / 921,654.28-1,383,103.88-322,620.40

Finding the Fourth Proportional to 921,654.28, 1,383,103.88 and 322,620.40

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Solution

The fourth proportional to 921,654.28, 1,383,103.88 and 322,620.40 is: 484,148.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,654.28 : 1,383,103.88 = 322,620.40 : x
  2. Step 2: Convert to fraction form
    921,654.28/1,383,103.88 = 322,620.40/x
  3. Step 3: Cross multiply
    921,654.28x = 1,383,103.88 × 322,620.40
  4. Step 4: Simplify right side
    921,654.28x = 446,217,527,007.15
  5. Step 5: Solve for x
    x = 446,217,527,007.15/921,654.28
  6. Step 6: Final answer
    x = 484,148.49

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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.