Home / 1,367,153.80-1,887,203.68-1,223,664.72

Finding the Fourth Proportional to 1,367,153.80, 1,887,203.68 and 1,223,664.72

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Solution

The fourth proportional to 1,367,153.80, 1,887,203.68 and 1,223,664.72 is: 1,689,132.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,153.80 : 1,887,203.68 = 1,223,664.72 : x
  2. Step 2: Convert to fraction form
    1,367,153.80/1,887,203.68 = 1,223,664.72/x
  3. Step 3: Cross multiply
    1,367,153.80x = 1,887,203.68 × 1,223,664.72
  4. Step 4: Simplify right side
    1,367,153.80x = 2,309,304,562,670.17
  5. Step 5: Solve for x
    x = 2,309,304,562,670.17/1,367,153.80
  6. Step 6: Final answer
    x = 1,689,132.97

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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.