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Finding the Fourth Proportional to 980,471.87, 1,470,792.51 and 270,499.91

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Solution

The fourth proportional to 980,471.87, 1,470,792.51 and 270,499.91 is: 405,773.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,471.87 : 1,470,792.51 = 270,499.91 : x
  2. Step 2: Convert to fraction form
    980,471.87/1,470,792.51 = 270,499.91/x
  3. Step 3: Cross multiply
    980,471.87x = 1,470,792.51 × 270,499.91
  4. Step 4: Simplify right side
    980,471.87x = 397,849,234,229.71
  5. Step 5: Solve for x
    x = 397,849,234,229.71/980,471.87
  6. Step 6: Final answer
    x = 405,773.23

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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.