Home / 1,226,132.52-1,692,297.05-811,939.25

Finding the Fourth Proportional to 1,226,132.52, 1,692,297.05 and 811,939.25

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Solution

The fourth proportional to 1,226,132.52, 1,692,297.05 and 811,939.25 is: 1,120,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,132.52 : 1,692,297.05 = 811,939.25 : x
  2. Step 2: Convert to fraction form
    1,226,132.52/1,692,297.05 = 811,939.25/x
  3. Step 3: Cross multiply
    1,226,132.52x = 1,692,297.05 × 811,939.25
  4. Step 4: Simplify right side
    1,226,132.52x = 1,374,042,385,033.03
  5. Step 5: Solve for x
    x = 1,374,042,385,033.03/1,226,132.52
  6. Step 6: Final answer
    x = 1,120,631.22

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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.