Home / 1,108,486.82-1,528,918.20-720,578.63

Finding the Fourth Proportional to 1,108,486.82, 1,528,918.20 and 720,578.63

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Solution

The fourth proportional to 1,108,486.82, 1,528,918.20 and 720,578.63 is: 993,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,486.82 : 1,528,918.20 = 720,578.63 : x
  2. Step 2: Convert to fraction form
    1,108,486.82/1,528,918.20 = 720,578.63/x
  3. Step 3: Cross multiply
    1,108,486.82x = 1,528,918.20 × 720,578.63
  4. Step 4: Simplify right side
    1,108,486.82x = 1,101,705,785,760.36
  5. Step 5: Solve for x
    x = 1,101,705,785,760.36/1,108,486.82
  6. Step 6: Final answer
    x = 993,882.62

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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.