Home / 1,325,951.60-1,990,661.88-787,191.44

Finding the Fourth Proportional to 1,325,951.60, 1,990,661.88 and 787,191.44

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Solution

The fourth proportional to 1,325,951.60, 1,990,661.88 and 787,191.44 is: 1,181,816.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,951.60 : 1,990,661.88 = 787,191.44 : x
  2. Step 2: Convert to fraction form
    1,325,951.60/1,990,661.88 = 787,191.44/x
  3. Step 3: Cross multiply
    1,325,951.60x = 1,990,661.88 × 787,191.44
  4. Step 4: Simplify right side
    1,325,951.60x = 1,567,031,991,870.31
  5. Step 5: Solve for x
    x = 1,567,031,991,870.31/1,325,951.60
  6. Step 6: Final answer
    x = 1,181,816.89

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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.