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Finding the Fourth Proportional to 647,433.20, 970,858.20 and 247,941.20

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Solution

The fourth proportional to 647,433.20, 970,858.20 and 247,941.20 is: 371,800.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,433.20 : 970,858.20 = 247,941.20 : x
  2. Step 2: Convert to fraction form
    647,433.20/970,858.20 = 247,941.20/x
  3. Step 3: Cross multiply
    647,433.20x = 970,858.20 × 247,941.20
  4. Step 4: Simplify right side
    647,433.20x = 240,715,747,137.84
  5. Step 5: Solve for x
    x = 240,715,747,137.84/647,433.20
  6. Step 6: Final answer
    x = 371,800.13

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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.