Home / 465,772.20-698,658.30-387,040.20

Finding the Fourth Proportional to 465,772.20, 698,658.30 and 387,040.20

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Solution

The fourth proportional to 465,772.20, 698,658.30 and 387,040.20 is: 580,560.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,772.20 : 698,658.30 = 387,040.20 : x
  2. Step 2: Convert to fraction form
    465,772.20/698,658.30 = 387,040.20/x
  3. Step 3: Cross multiply
    465,772.20x = 698,658.30 × 387,040.20
  4. Step 4: Simplify right side
    465,772.20x = 270,408,848,163.66
  5. Step 5: Solve for x
    x = 270,408,848,163.66/465,772.20
  6. Step 6: Final answer
    x = 580,560.30

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1.5x scale

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.