Home / 747,412.72-1,120,452.45-273,987.57

Finding the Fourth Proportional to 747,412.72, 1,120,452.45 and 273,987.57

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Solution

The fourth proportional to 747,412.72, 1,120,452.45 and 273,987.57 is: 410,736.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,412.72 : 1,120,452.45 = 273,987.57 : x
  2. Step 2: Convert to fraction form
    747,412.72/1,120,452.45 = 273,987.57/x
  3. Step 3: Cross multiply
    747,412.72x = 1,120,452.45 × 273,987.57
  4. Step 4: Simplify right side
    747,412.72x = 306,990,044,076.05
  5. Step 5: Solve for x
    x = 306,990,044,076.05/747,412.72
  6. Step 6: Final answer
    x = 410,736.98

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Double scale
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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.