Home / 688,115.05-1,032,172.57-214,840.96

Finding the Fourth Proportional to 688,115.05, 1,032,172.57 and 214,840.96

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Solution

The fourth proportional to 688,115.05, 1,032,172.57 and 214,840.96 is: 322,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,115.05 : 1,032,172.57 = 214,840.96 : x
  2. Step 2: Convert to fraction form
    688,115.05/1,032,172.57 = 214,840.96/x
  3. Step 3: Cross multiply
    688,115.05x = 1,032,172.57 × 214,840.96
  4. Step 4: Simplify right side
    688,115.05x = 221,752,943,512.59
  5. Step 5: Solve for x
    x = 221,752,943,512.59/688,115.05
  6. Step 6: Final answer
    x = 322,261.44

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Similar ratio
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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.