Home / 743,391.23-1,120,084.20-672,392.97

Finding the Fourth Proportional to 743,391.23, 1,120,084.20 and 672,392.97

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Solution

The fourth proportional to 743,391.23, 1,120,084.20 and 672,392.97 is: 1,013,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,391.23 : 1,120,084.20 = 672,392.97 : x
  2. Step 2: Convert to fraction form
    743,391.23/1,120,084.20 = 672,392.97/x
  3. Step 3: Cross multiply
    743,391.23x = 1,120,084.20 × 672,392.97
  4. Step 4: Simplify right side
    743,391.23x = 753,136,741,888.07
  5. Step 5: Solve for x
    x = 753,136,741,888.07/743,391.23
  6. Step 6: Final answer
    x = 1,013,109.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.