Home / 899,195.20-1,240,874.69-491,288.26

Finding the Fourth Proportional to 899,195.20, 1,240,874.69 and 491,288.26

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Solution

The fourth proportional to 899,195.20, 1,240,874.69 and 491,288.26 is: 677,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,195.20 : 1,240,874.69 = 491,288.26 : x
  2. Step 2: Convert to fraction form
    899,195.20/1,240,874.69 = 491,288.26/x
  3. Step 3: Cross multiply
    899,195.20x = 1,240,874.69 × 491,288.26
  4. Step 4: Simplify right side
    899,195.20x = 609,627,158,667.33
  5. Step 5: Solve for x
    x = 609,627,158,667.33/899,195.20
  6. Step 6: Final answer
    x = 677,969.77

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Double scale
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1.5x scale

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.