Home / 827,821.70-1,241,732.55-778,832.90

Finding the Fourth Proportional to 827,821.70, 1,241,732.55 and 778,832.90

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Solution

The fourth proportional to 827,821.70, 1,241,732.55 and 778,832.90 is: 1,168,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,821.70 : 1,241,732.55 = 778,832.90 : x
  2. Step 2: Convert to fraction form
    827,821.70/1,241,732.55 = 778,832.90/x
  3. Step 3: Cross multiply
    827,821.70x = 1,241,732.55 × 778,832.90
  4. Step 4: Simplify right side
    827,821.70x = 967,102,162,940.90
  5. Step 5: Solve for x
    x = 967,102,162,940.90/827,821.70
  6. Step 6: Final answer
    x = 1,168,249.35

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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.