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Finding the Fourth Proportional to 654,378.40, 981,632.40 and 227,848.60

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Solution

The fourth proportional to 654,378.40, 981,632.40 and 227,848.60 is: 341,795.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,378.40 : 981,632.40 = 227,848.60 : x
  2. Step 2: Convert to fraction form
    654,378.40/981,632.40 = 227,848.60/x
  3. Step 3: Cross multiply
    654,378.40x = 981,632.40 × 227,848.60
  4. Step 4: Simplify right side
    654,378.40x = 223,663,568,054.64
  5. Step 5: Solve for x
    x = 223,663,568,054.64/654,378.40
  6. Step 6: Final answer
    x = 341,795.46

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Double scale
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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.