Home / 1,399,187.20-1,931,165.12-889,791.04

Finding the Fourth Proportional to 1,399,187.20, 1,931,165.12 and 889,791.04

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Solution

The fourth proportional to 1,399,187.20, 1,931,165.12 and 889,791.04 is: 1,228,094.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,187.20 : 1,931,165.12 = 889,791.04 : x
  2. Step 2: Convert to fraction form
    1,399,187.20/1,931,165.12 = 889,791.04/x
  3. Step 3: Cross multiply
    1,399,187.20x = 1,931,165.12 × 889,791.04
  4. Step 4: Simplify right side
    1,399,187.20x = 1,718,333,420,536.53
  5. Step 5: Solve for x
    x = 1,718,333,420,536.53/1,399,187.20
  6. Step 6: Final answer
    x = 1,228,094.01

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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.