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Finding the Fourth Proportional to 647,949.60, 971,211.60 and 227,008.80

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Solution

The fourth proportional to 647,949.60, 971,211.60 and 227,008.80 is: 340,263.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,949.60 : 971,211.60 = 227,008.80 : x
  2. Step 2: Convert to fraction form
    647,949.60/971,211.60 = 227,008.80/x
  3. Step 3: Cross multiply
    647,949.60x = 971,211.60 × 227,008.80
  4. Step 4: Simplify right side
    647,949.60x = 220,473,579,862.08
  5. Step 5: Solve for x
    x = 220,473,579,862.08/647,949.60
  6. Step 6: Final answer
    x = 340,263.47

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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.