Home / 1,270.08-1,904.98-404.46

Finding the Fourth Proportional to 1,270.08, 1,904.98 and 404.46

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Solution

The fourth proportional to 1,270.08, 1,904.98 and 404.46 is: 606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270.08 : 1,904.98 = 404.46 : x
  2. Step 2: Convert to fraction form
    1,270.08/1,904.98 = 404.46/x
  3. Step 3: Cross multiply
    1,270.08x = 1,904.98 × 404.46
  4. Step 4: Simplify right side
    1,270.08x = 770,488.21
  5. Step 5: Solve for x
    x = 770,488.21/1,270.08
  6. Step 6: Final answer
    x = 606.65

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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.