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Finding the Fourth Proportional to 555,680.34, 766,765.52 and 351,370.80

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Solution

The fourth proportional to 555,680.34, 766,765.52 and 351,370.80 is: 484,845.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,680.34 : 766,765.52 = 351,370.80 : x
  2. Step 2: Convert to fraction form
    555,680.34/766,765.52 = 351,370.80/x
  3. Step 3: Cross multiply
    555,680.34x = 766,765.52 × 351,370.80
  4. Step 4: Simplify right side
    555,680.34x = 269,419,014,174.82
  5. Step 5: Solve for x
    x = 269,419,014,174.82/555,680.34
  6. Step 6: Final answer
    x = 484,845.32

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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.