Home / 1,159,941.27-1,600,736.36-643,728.60

Finding the Fourth Proportional to 1,159,941.27, 1,600,736.36 and 643,728.60

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Solution

The fourth proportional to 1,159,941.27, 1,600,736.36 and 643,728.60 is: 888,355.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,941.27 : 1,600,736.36 = 643,728.60 : x
  2. Step 2: Convert to fraction form
    1,159,941.27/1,600,736.36 = 643,728.60/x
  3. Step 3: Cross multiply
    1,159,941.27x = 1,600,736.36 × 643,728.60
  4. Step 4: Simplify right side
    1,159,941.27x = 1,030,439,775,991.90
  5. Step 5: Solve for x
    x = 1,030,439,775,991.90/1,159,941.27
  6. Step 6: Final answer
    x = 888,355.13

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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.