Home / 981,504.52-1,472,256.96-307,585.60

Finding the Fourth Proportional to 981,504.52, 1,472,256.96 and 307,585.60

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Solution

The fourth proportional to 981,504.52, 1,472,256.96 and 307,585.60 is: 461,378.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,504.52 : 1,472,256.96 = 307,585.60 : x
  2. Step 2: Convert to fraction form
    981,504.52/1,472,256.96 = 307,585.60/x
  3. Step 3: Cross multiply
    981,504.52x = 1,472,256.96 × 307,585.60
  4. Step 4: Simplify right side
    981,504.52x = 452,845,040,395.78
  5. Step 5: Solve for x
    x = 452,845,040,395.78/981,504.52
  6. Step 6: Final answer
    x = 461,378.46

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Double scale
Find fourth proportional to 981,505.52, 1,472,258.46 and 307,586.60
Similar ratio
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1.5x scale

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.