Home / 840,759.45-1,261,637.64-787,563.11

Finding the Fourth Proportional to 840,759.45, 1,261,637.64 and 787,563.11

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Solution

The fourth proportional to 840,759.45, 1,261,637.64 and 787,563.11 is: 1,181,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,759.45 : 1,261,637.64 = 787,563.11 : x
  2. Step 2: Convert to fraction form
    840,759.45/1,261,637.64 = 787,563.11/x
  3. Step 3: Cross multiply
    840,759.45x = 1,261,637.64 × 787,563.11
  4. Step 4: Simplify right side
    840,759.45x = 993,619,257,143.27
  5. Step 5: Solve for x
    x = 993,619,257,143.27/840,759.45
  6. Step 6: Final answer
    x = 1,181,811.58

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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.