Home / 401,868.10-554,568.99-220,578.76

Finding the Fourth Proportional to 401,868.10, 554,568.99 and 220,578.76

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Solution

The fourth proportional to 401,868.10, 554,568.99 and 220,578.76 is: 304,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,868.10 : 554,568.99 = 220,578.76 : x
  2. Step 2: Convert to fraction form
    401,868.10/554,568.99 = 220,578.76/x
  3. Step 3: Cross multiply
    401,868.10x = 554,568.99 × 220,578.76
  4. Step 4: Simplify right side
    401,868.10x = 122,326,140,148.65
  5. Step 5: Solve for x
    x = 122,326,140,148.65/401,868.10
  6. Step 6: Final answer
    x = 304,393.76

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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.