Home / 1,387,553.94-2,078,380.27-666,837.22

Finding the Fourth Proportional to 1,387,553.94, 2,078,380.27 and 666,837.22

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Solution

The fourth proportional to 1,387,553.94, 2,078,380.27 and 666,837.22 is: 998,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,553.94 : 2,078,380.27 = 666,837.22 : x
  2. Step 2: Convert to fraction form
    1,387,553.94/2,078,380.27 = 666,837.22/x
  3. Step 3: Cross multiply
    1,387,553.94x = 2,078,380.27 × 666,837.22
  4. Step 4: Simplify right side
    1,387,553.94x = 1,385,941,321,349.65
  5. Step 5: Solve for x
    x = 1,385,941,321,349.65/1,387,553.94
  6. Step 6: Final answer
    x = 998,837.80

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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.