Home / 688,115.80-1,032,173.70-214,841.71

Finding the Fourth Proportional to 688,115.80, 1,032,173.70 and 214,841.71

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Solution

The fourth proportional to 688,115.80, 1,032,173.70 and 214,841.71 is: 322,262.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,115.80 : 1,032,173.70 = 214,841.71 : x
  2. Step 2: Convert to fraction form
    688,115.80/1,032,173.70 = 214,841.71/x
  3. Step 3: Cross multiply
    688,115.80x = 1,032,173.70 × 214,841.71
  4. Step 4: Simplify right side
    688,115.80x = 221,753,960,144.59
  5. Step 5: Solve for x
    x = 221,753,960,144.59/688,115.80
  6. Step 6: Final answer
    x = 322,262.56

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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.