Home / 647,276.20-970,758.72-331,570.60

Finding the Fourth Proportional to 647,276.20, 970,758.72 and 331,570.60

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Solution

The fourth proportional to 647,276.20, 970,758.72 and 331,570.60 is: 497,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,276.20 : 970,758.72 = 331,570.60 : x
  2. Step 2: Convert to fraction form
    647,276.20/970,758.72 = 331,570.60/x
  3. Step 3: Cross multiply
    647,276.20x = 970,758.72 × 331,570.60
  4. Step 4: Simplify right side
    647,276.20x = 321,875,051,245.63
  5. Step 5: Solve for x
    x = 321,875,051,245.63/647,276.20
  6. Step 6: Final answer
    x = 497,276.20

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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.