Home / 840,932.80-1,261,399.20-808,273.60

Finding the Fourth Proportional to 840,932.80, 1,261,399.20 and 808,273.60

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Solution

The fourth proportional to 840,932.80, 1,261,399.20 and 808,273.60 is: 1,212,410.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,932.80 : 1,261,399.20 = 808,273.60 : x
  2. Step 2: Convert to fraction form
    840,932.80/1,261,399.20 = 808,273.60/x
  3. Step 3: Cross multiply
    840,932.80x = 1,261,399.20 × 808,273.60
  4. Step 4: Simplify right side
    840,932.80x = 1,019,555,672,421.12
  5. Step 5: Solve for x
    x = 1,019,555,672,421.12/840,932.80
  6. Step 6: Final answer
    x = 1,212,410.40

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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.