Home / 991,436.56-1,368,190.66-538,727.56

Finding the Fourth Proportional to 991,436.56, 1,368,190.66 and 538,727.56

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Solution

The fourth proportional to 991,436.56, 1,368,190.66 and 538,727.56 is: 743,448.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,436.56 : 1,368,190.66 = 538,727.56 : x
  2. Step 2: Convert to fraction form
    991,436.56/1,368,190.66 = 538,727.56/x
  3. Step 3: Cross multiply
    991,436.56x = 1,368,190.66 × 538,727.56
  4. Step 4: Simplify right side
    991,436.56x = 737,082,015,876.59
  5. Step 5: Solve for x
    x = 737,082,015,876.59/991,436.56
  6. Step 6: Final answer
    x = 743,448.49

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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.