Home / 426,122.33-639,205.52-404,574.12

Finding the Fourth Proportional to 426,122.33, 639,205.52 and 404,574.12

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Solution

The fourth proportional to 426,122.33, 639,205.52 and 404,574.12 is: 606,882.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,122.33 : 639,205.52 = 404,574.12 : x
  2. Step 2: Convert to fraction form
    426,122.33/639,205.52 = 404,574.12/x
  3. Step 3: Cross multiply
    426,122.33x = 639,205.52 × 404,574.12
  4. Step 4: Simplify right side
    426,122.33x = 258,606,008,730.27
  5. Step 5: Solve for x
    x = 258,606,008,730.27/426,122.33
  6. Step 6: Final answer
    x = 606,882.09

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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.