Home / 991,637.85-1,367,992.83-719,107.89

Finding the Fourth Proportional to 991,637.85, 1,367,992.83 and 719,107.89

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Solution

The fourth proportional to 991,637.85, 1,367,992.83 and 719,107.89 is: 992,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,637.85 : 1,367,992.83 = 719,107.89 : x
  2. Step 2: Convert to fraction form
    991,637.85/1,367,992.83 = 719,107.89/x
  3. Step 3: Cross multiply
    991,637.85x = 1,367,992.83 × 719,107.89
  4. Step 4: Simplify right side
    991,637.85x = 983,734,437,516.43
  5. Step 5: Solve for x
    x = 983,734,437,516.43/991,637.85
  6. Step 6: Final answer
    x = 992,029.94

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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.