Home / 1,431,780.23-1,975,739.85-842,986.73

Finding the Fourth Proportional to 1,431,780.23, 1,975,739.85 and 842,986.73

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Solution

The fourth proportional to 1,431,780.23, 1,975,739.85 and 842,986.73 is: 1,163,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,780.23 : 1,975,739.85 = 842,986.73 : x
  2. Step 2: Convert to fraction form
    1,431,780.23/1,975,739.85 = 842,986.73/x
  3. Step 3: Cross multiply
    1,431,780.23x = 1,975,739.85 × 842,986.73
  4. Step 4: Simplify right side
    1,431,780.23x = 1,665,522,469,308.00
  5. Step 5: Solve for x
    x = 1,665,522,469,308.00/1,431,780.23
  6. Step 6: Final answer
    x = 1,163,252.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.