Home / 3,520,660.60-5,280,990.90-861,268.60

Finding the Fourth Proportional to 3,520,660.60, 5,280,990.90 and 861,268.60

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Solution

The fourth proportional to 3,520,660.60, 5,280,990.90 and 861,268.60 is: 1,291,902.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520,660.60 : 5,280,990.90 = 861,268.60 : x
  2. Step 2: Convert to fraction form
    3,520,660.60/5,280,990.90 = 861,268.60/x
  3. Step 3: Cross multiply
    3,520,660.60x = 5,280,990.90 × 861,268.60
  4. Step 4: Simplify right side
    3,520,660.60x = 4,548,351,639,055.74
  5. Step 5: Solve for x
    x = 4,548,351,639,055.74/3,520,660.60
  6. Step 6: Final answer
    x = 1,291,902.90

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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.