Home / 1,296,915.30-1,789,668.88-723,991.77

Finding the Fourth Proportional to 1,296,915.30, 1,789,668.88 and 723,991.77

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Solution

The fourth proportional to 1,296,915.30, 1,789,668.88 and 723,991.77 is: 999,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,915.30 : 1,789,668.88 = 723,991.77 : x
  2. Step 2: Convert to fraction form
    1,296,915.30/1,789,668.88 = 723,991.77/x
  3. Step 3: Cross multiply
    1,296,915.30x = 1,789,668.88 × 723,991.77
  4. Step 4: Simplify right side
    1,296,915.30x = 1,295,705,538,335.14
  5. Step 5: Solve for x
    x = 1,295,705,538,335.14/1,296,915.30
  6. Step 6: Final answer
    x = 999,067.20

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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.