Home / 782,623.87-1,179,266.62-643,583.53

Finding the Fourth Proportional to 782,623.87, 1,179,266.62 and 643,583.53

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Solution

The fourth proportional to 782,623.87, 1,179,266.62 and 643,583.53 is: 969,759.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,623.87 : 1,179,266.62 = 643,583.53 : x
  2. Step 2: Convert to fraction form
    782,623.87/1,179,266.62 = 643,583.53/x
  3. Step 3: Cross multiply
    782,623.87x = 1,179,266.62 × 643,583.53
  4. Step 4: Simplify right side
    782,623.87x = 758,956,570,359.32
  5. Step 5: Solve for x
    x = 758,956,570,359.32/782,623.87
  6. Step 6: Final answer
    x = 969,759.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.