Home / 921,845.80-1,383,546.30-448,935.40

Finding the Fourth Proportional to 921,845.80, 1,383,546.30 and 448,935.40

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Solution

The fourth proportional to 921,845.80, 1,383,546.30 and 448,935.40 is: 673,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,845.80 : 1,383,546.30 = 448,935.40 : x
  2. Step 2: Convert to fraction form
    921,845.80/1,383,546.30 = 448,935.40/x
  3. Step 3: Cross multiply
    921,845.80x = 1,383,546.30 × 448,935.40
  4. Step 4: Simplify right side
    921,845.80x = 621,122,911,609.02
  5. Step 5: Solve for x
    x = 621,122,911,609.02/921,845.80
  6. Step 6: Final answer
    x = 673,781.79

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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.