Home / 820,314.30-1,230,471.45-708,121.20

Finding the Fourth Proportional to 820,314.30, 1,230,471.45 and 708,121.20

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Solution

The fourth proportional to 820,314.30, 1,230,471.45 and 708,121.20 is: 1,062,181.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,314.30 : 1,230,471.45 = 708,121.20 : x
  2. Step 2: Convert to fraction form
    820,314.30/1,230,471.45 = 708,121.20/x
  3. Step 3: Cross multiply
    820,314.30x = 1,230,471.45 × 708,121.20
  4. Step 4: Simplify right side
    820,314.30x = 871,322,919,739.74
  5. Step 5: Solve for x
    x = 871,322,919,739.74/820,314.30
  6. Step 6: Final answer
    x = 1,062,181.80

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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.