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Finding the Fourth Proportional to 647,663.60, 970,782.60 and 226,722.80

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Solution

The fourth proportional to 647,663.60, 970,782.60 and 226,722.80 is: 339,834.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,663.60 : 970,782.60 = 226,722.80 : x
  2. Step 2: Convert to fraction form
    647,663.60/970,782.60 = 226,722.80/x
  3. Step 3: Cross multiply
    647,663.60x = 970,782.60 × 226,722.80
  4. Step 4: Simplify right side
    647,663.60x = 220,098,549,263.28
  5. Step 5: Solve for x
    x = 220,098,549,263.28/647,663.60
  6. Step 6: Final answer
    x = 339,834.68

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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.