Home / 814,981.20-1,222,471.80-416,400.45

Finding the Fourth Proportional to 814,981.20, 1,222,471.80 and 416,400.45

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Solution

The fourth proportional to 814,981.20, 1,222,471.80 and 416,400.45 is: 624,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,981.20 : 1,222,471.80 = 416,400.45 : x
  2. Step 2: Convert to fraction form
    814,981.20/1,222,471.80 = 416,400.45/x
  3. Step 3: Cross multiply
    814,981.20x = 1,222,471.80 × 416,400.45
  4. Step 4: Simplify right side
    814,981.20x = 509,037,807,632.31
  5. Step 5: Solve for x
    x = 509,037,807,632.31/814,981.20
  6. Step 6: Final answer
    x = 624,600.68

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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.