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Finding the Fourth Proportional to 555,787.24, 766,986.89 and 301,138.42

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Solution

The fourth proportional to 555,787.24, 766,986.89 and 301,138.42 is: 415,571.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,787.24 : 766,986.89 = 301,138.42 : x
  2. Step 2: Convert to fraction form
    555,787.24/766,986.89 = 301,138.42/x
  3. Step 3: Cross multiply
    555,787.24x = 766,986.89 × 301,138.42
  4. Step 4: Simplify right side
    555,787.24x = 230,969,220,215.31
  5. Step 5: Solve for x
    x = 230,969,220,215.31/555,787.24
  6. Step 6: Final answer
    x = 415,571.29

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1.5x scale

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.