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Finding the Fourth Proportional to 648,601.20, 972,901.80 and 227,919.60

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Solution

The fourth proportional to 648,601.20, 972,901.80 and 227,919.60 is: 341,879.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,601.20 : 972,901.80 = 227,919.60 : x
  2. Step 2: Convert to fraction form
    648,601.20/972,901.80 = 227,919.60/x
  3. Step 3: Cross multiply
    648,601.20x = 972,901.80 × 227,919.60
  4. Step 4: Simplify right side
    648,601.20x = 221,743,389,095.28
  5. Step 5: Solve for x
    x = 221,743,389,095.28/648,601.20
  6. Step 6: Final answer
    x = 341,879.40

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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.