Home / 1,163,428.11-1,604,991.92-680,013.63

Finding the Fourth Proportional to 1,163,428.11, 1,604,991.92 and 680,013.63

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Solution

The fourth proportional to 1,163,428.11, 1,604,991.92 and 680,013.63 is: 938,103.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163,428.11 : 1,604,991.92 = 680,013.63 : x
  2. Step 2: Convert to fraction form
    1,163,428.11/1,604,991.92 = 680,013.63/x
  3. Step 3: Cross multiply
    1,163,428.11x = 1,604,991.92 × 680,013.63
  4. Step 4: Simplify right side
    1,163,428.11x = 1,091,416,378,239.80
  5. Step 5: Solve for x
    x = 1,091,416,378,239.80/1,163,428.11
  6. Step 6: Final answer
    x = 938,103.84

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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.