Home / 818,249.59-1,227,453.72-278,886.25

Finding the Fourth Proportional to 818,249.59, 1,227,453.72 and 278,886.25

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Solution

The fourth proportional to 818,249.59, 1,227,453.72 and 278,886.25 is: 418,356.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,249.59 : 1,227,453.72 = 278,886.25 : x
  2. Step 2: Convert to fraction form
    818,249.59/1,227,453.72 = 278,886.25/x
  3. Step 3: Cross multiply
    818,249.59x = 1,227,453.72 × 278,886.25
  4. Step 4: Simplify right side
    818,249.59x = 342,319,965,019.35
  5. Step 5: Solve for x
    x = 342,319,965,019.35/818,249.59
  6. Step 6: Final answer
    x = 418,356.41

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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.