Home / 648,015.60-972,023.40-227,236.80

Finding the Fourth Proportional to 648,015.60, 972,023.40 and 227,236.80

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Solution

The fourth proportional to 648,015.60, 972,023.40 and 227,236.80 is: 340,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,015.60 : 972,023.40 = 227,236.80 : x
  2. Step 2: Convert to fraction form
    648,015.60/972,023.40 = 227,236.80/x
  3. Step 3: Cross multiply
    648,015.60x = 972,023.40 × 227,236.80
  4. Step 4: Simplify right side
    648,015.60x = 220,879,486,941.12
  5. Step 5: Solve for x
    x = 220,879,486,941.12/648,015.60
  6. Step 6: Final answer
    x = 340,855.20

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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.