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Finding the Fourth Proportional to 647,641.60, 970,749.60 and 226,700.80

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Solution

The fourth proportional to 647,641.60, 970,749.60 and 226,700.80 is: 339,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,641.60 : 970,749.60 = 226,700.80 : x
  2. Step 2: Convert to fraction form
    647,641.60/970,749.60 = 226,700.80/x
  3. Step 3: Cross multiply
    647,641.60x = 970,749.60 × 226,700.80
  4. Step 4: Simplify right side
    647,641.60x = 220,069,710,919.68
  5. Step 5: Solve for x
    x = 220,069,710,919.68/647,641.60
  6. Step 6: Final answer
    x = 339,801.69

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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.