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Finding the Fourth Proportional to 555,787.49, 766,987.24 and 301,138.68

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Solution

The fourth proportional to 555,787.49, 766,987.24 and 301,138.68 is: 415,571.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,787.49 : 766,987.24 = 301,138.68 : x
  2. Step 2: Convert to fraction form
    555,787.49/766,987.24 = 301,138.68/x
  3. Step 3: Cross multiply
    555,787.49x = 766,987.24 × 301,138.68
  4. Step 4: Simplify right side
    555,787.49x = 230,969,521,195.51
  5. Step 5: Solve for x
    x = 230,969,521,195.51/555,787.49
  6. Step 6: Final answer
    x = 415,571.64

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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.