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Finding the Fourth Proportional to 647,466.40, 970,738.80 and 247,952.80

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Solution

The fourth proportional to 647,466.40, 970,738.80 and 247,952.80 is: 371,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,466.40 : 970,738.80 = 247,952.80 : x
  2. Step 2: Convert to fraction form
    647,466.40/970,738.80 = 247,952.80/x
  3. Step 3: Cross multiply
    647,466.40x = 970,738.80 × 247,952.80
  4. Step 4: Simplify right side
    647,466.40x = 240,697,403,528.64
  5. Step 5: Solve for x
    x = 240,697,403,528.64/647,466.40
  6. Step 6: Final answer
    x = 371,752.73

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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.