Home / 1,988,999.20-2,984,665.20-726,954.40

Finding the Fourth Proportional to 1,988,999.20, 2,984,665.20 and 726,954.40

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Solution

The fourth proportional to 1,988,999.20, 2,984,665.20 and 726,954.40 is: 1,090,857.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,999.20 : 2,984,665.20 = 726,954.40 : x
  2. Step 2: Convert to fraction form
    1,988,999.20/2,984,665.20 = 726,954.40/x
  3. Step 3: Cross multiply
    1,988,999.20x = 2,984,665.20 × 726,954.40
  4. Step 4: Simplify right side
    1,988,999.20x = 2,169,715,499,666.88
  5. Step 5: Solve for x
    x = 2,169,715,499,666.88/1,988,999.20
  6. Step 6: Final answer
    x = 1,090,857.90

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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.