Home / 684,288,313.20-1,026,432,469.80-411,518,674.80

Finding the Fourth Proportional to 684,288,313.20, 1,026,432,469.80 and 411,518,674.80

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Solution

The fourth proportional to 684,288,313.20, 1,026,432,469.80 and 411,518,674.80 is: 617,278,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,288,313.20 : 1,026,432,469.80 = 411,518,674.80 : x
  2. Step 2: Convert to fraction form
    684,288,313.20/1,026,432,469.80 = 411,518,674.80/x
  3. Step 3: Cross multiply
    684,288,313.20x = 1,026,432,469.80 × 411,518,674.80
  4. Step 4: Simplify right side
    684,288,313.20x = 422,396,129,743,787,008
  5. Step 5: Solve for x
    x = 422,396,129,743,787,008/684,288,313.20
  6. Step 6: Final answer
    x = 617,278,012.20

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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.