Home / 820,946.60-1,231,304.70-260,037.80

Finding the Fourth Proportional to 820,946.60, 1,231,304.70 and 260,037.80

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Solution

The fourth proportional to 820,946.60, 1,231,304.70 and 260,037.80 is: 390,020.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,946.60 : 1,231,304.70 = 260,037.80 : x
  2. Step 2: Convert to fraction form
    820,946.60/1,231,304.70 = 260,037.80/x
  3. Step 3: Cross multiply
    820,946.60x = 1,231,304.70 × 260,037.80
  4. Step 4: Simplify right side
    820,946.60x = 320,185,765,317.66
  5. Step 5: Solve for x
    x = 320,185,765,317.66/820,946.60
  6. Step 6: Final answer
    x = 390,020.21

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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.