Home / 989,560.87-1,365,722.64-554,144.00

Finding the Fourth Proportional to 989,560.87, 1,365,722.64 and 554,144.00

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Solution

The fourth proportional to 989,560.87, 1,365,722.64 and 554,144.00 is: 764,790.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,560.87 : 1,365,722.64 = 554,144.00 : x
  2. Step 2: Convert to fraction form
    989,560.87/1,365,722.64 = 554,144.00/x
  3. Step 3: Cross multiply
    989,560.87x = 1,365,722.64 × 554,144.00
  4. Step 4: Simplify right side
    989,560.87x = 756,806,999,791.55
  5. Step 5: Solve for x
    x = 756,806,999,791.55/989,560.87
  6. Step 6: Final answer
    x = 764,790.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.