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Finding the Fourth Proportional to 648,604.70, 972,907.05 and 227,923.10

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Solution

The fourth proportional to 648,604.70, 972,907.05 and 227,923.10 is: 341,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,604.70 : 972,907.05 = 227,923.10 : x
  2. Step 2: Convert to fraction form
    648,604.70/972,907.05 = 227,923.10/x
  3. Step 3: Cross multiply
    648,604.70x = 972,907.05 × 227,923.10
  4. Step 4: Simplify right side
    648,604.70x = 221,747,990,847.86
  5. Step 5: Solve for x
    x = 221,747,990,847.86/648,604.70
  6. Step 6: Final answer
    x = 341,884.65

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Half scale
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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.