Home / 699,078.78-1,048,610.88-225,753.66

Finding the Fourth Proportional to 699,078.78, 1,048,610.88 and 225,753.66

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Solution

The fourth proportional to 699,078.78, 1,048,610.88 and 225,753.66 is: 338,628.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,078.78 : 1,048,610.88 = 225,753.66 : x
  2. Step 2: Convert to fraction form
    699,078.78/1,048,610.88 = 225,753.66/x
  3. Step 3: Cross multiply
    699,078.78x = 1,048,610.88 × 225,753.66
  4. Step 4: Simplify right side
    699,078.78x = 236,727,744,075.82
  5. Step 5: Solve for x
    x = 236,727,744,075.82/699,078.78
  6. Step 6: Final answer
    x = 338,628.14

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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.