Home / 899,180.20-1,240,854.19-491,273.28

Finding the Fourth Proportional to 899,180.20, 1,240,854.19 and 491,273.28

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Solution

The fourth proportional to 899,180.20, 1,240,854.19 and 491,273.28 is: 677,949.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,180.20 : 1,240,854.19 = 491,273.28 : x
  2. Step 2: Convert to fraction form
    899,180.20/1,240,854.19 = 491,273.28/x
  3. Step 3: Cross multiply
    899,180.20x = 1,240,854.19 × 491,273.28
  4. Step 4: Simplify right side
    899,180.20x = 609,598,509,458.27
  5. Step 5: Solve for x
    x = 609,598,509,458.27/899,180.20
  6. Step 6: Final answer
    x = 677,949.22

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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.