Home / 1,369,729.20-1,890,986.47-826,002.73

Finding the Fourth Proportional to 1,369,729.20, 1,890,986.47 and 826,002.73

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Solution

The fourth proportional to 1,369,729.20, 1,890,986.47 and 826,002.73 is: 1,140,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,729.20 : 1,890,986.47 = 826,002.73 : x
  2. Step 2: Convert to fraction form
    1,369,729.20/1,890,986.47 = 826,002.73/x
  3. Step 3: Cross multiply
    1,369,729.20x = 1,890,986.47 × 826,002.73
  4. Step 4: Simplify right side
    1,369,729.20x = 1,561,959,978,598.12
  5. Step 5: Solve for x
    x = 1,561,959,978,598.12/1,369,729.20
  6. Step 6: Final answer
    x = 1,140,342.18

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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.