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Finding the Fourth Proportional to 647,998.70, 971,220.45 and 332,293.10

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Solution

The fourth proportional to 647,998.70, 971,220.45 and 332,293.10 is: 498,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,998.70 : 971,220.45 = 332,293.10 : x
  2. Step 2: Convert to fraction form
    647,998.70/971,220.45 = 332,293.10/x
  3. Step 3: Cross multiply
    647,998.70x = 971,220.45 × 332,293.10
  4. Step 4: Simplify right side
    647,998.70x = 322,729,854,113.90
  5. Step 5: Solve for x
    x = 322,729,854,113.90/647,998.70
  6. Step 6: Final answer
    x = 498,040.90

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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.