Home / 1,387,005.37-1,914,656.79-843,314.90

Finding the Fourth Proportional to 1,387,005.37, 1,914,656.79 and 843,314.90

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Solution

The fourth proportional to 1,387,005.37, 1,914,656.79 and 843,314.90 is: 1,164,132.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,005.37 : 1,914,656.79 = 843,314.90 : x
  2. Step 2: Convert to fraction form
    1,387,005.37/1,914,656.79 = 843,314.90/x
  3. Step 3: Cross multiply
    1,387,005.37x = 1,914,656.79 × 843,314.90
  4. Step 4: Simplify right side
    1,387,005.37x = 1,614,658,599,393.17
  5. Step 5: Solve for x
    x = 1,614,658,599,393.17/1,387,005.37
  6. Step 6: Final answer
    x = 1,164,132.91

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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.