Home / 998,504.59-1,379,072.55-671,249.20

Finding the Fourth Proportional to 998,504.59, 1,379,072.55 and 671,249.20

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Solution

The fourth proportional to 998,504.59, 1,379,072.55 and 671,249.20 is: 927,087.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,504.59 : 1,379,072.55 = 671,249.20 : x
  2. Step 2: Convert to fraction form
    998,504.59/1,379,072.55 = 671,249.20/x
  3. Step 3: Cross multiply
    998,504.59x = 1,379,072.55 × 671,249.20
  4. Step 4: Simplify right side
    998,504.59x = 925,701,345,929.46
  5. Step 5: Solve for x
    x = 925,701,345,929.46/998,504.59
  6. Step 6: Final answer
    x = 927,087.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.