Home / 688,659.62-1,032,950.54-215,289.14

Finding the Fourth Proportional to 688,659.62, 1,032,950.54 and 215,289.14

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Solution

The fourth proportional to 688,659.62, 1,032,950.54 and 215,289.14 is: 322,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,659.62 : 1,032,950.54 = 215,289.14 : x
  2. Step 2: Convert to fraction form
    688,659.62/1,032,950.54 = 215,289.14/x
  3. Step 3: Cross multiply
    688,659.62x = 1,032,950.54 × 215,289.14
  4. Step 4: Simplify right side
    688,659.62x = 222,383,028,792.61
  5. Step 5: Solve for x
    x = 222,383,028,792.61/688,659.62
  6. Step 6: Final answer
    x = 322,921.55

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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.