Home / 1,329,681.44-1,995,247.92-769,809.44

Finding the Fourth Proportional to 1,329,681.44, 1,995,247.92 and 769,809.44

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Solution

The fourth proportional to 1,329,681.44, 1,995,247.92 and 769,809.44 is: 1,155,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,681.44 : 1,995,247.92 = 769,809.44 : x
  2. Step 2: Convert to fraction form
    1,329,681.44/1,995,247.92 = 769,809.44/x
  3. Step 3: Cross multiply
    1,329,681.44x = 1,995,247.92 × 769,809.44
  4. Step 4: Simplify right side
    1,329,681.44x = 1,535,960,683,956.36
  5. Step 5: Solve for x
    x = 1,535,960,683,956.36/1,329,681.44
  6. Step 6: Final answer
    x = 1,155,134.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.