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Finding the Fourth Proportional to 441,382.60, 660,518.70 and 307,635.40

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Solution

The fourth proportional to 441,382.60, 660,518.70 and 307,635.40 is: 460,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,382.60 : 660,518.70 = 307,635.40 : x
  2. Step 2: Convert to fraction form
    441,382.60/660,518.70 = 307,635.40/x
  3. Step 3: Cross multiply
    441,382.60x = 660,518.70 × 307,635.40
  4. Step 4: Simplify right side
    441,382.60x = 203,198,934,481.98
  5. Step 5: Solve for x
    x = 203,198,934,481.98/441,382.60
  6. Step 6: Final answer
    x = 460,369.15

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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.