Home / 991,697.49-1,368,551.57-538,989.57

Finding the Fourth Proportional to 991,697.49, 1,368,551.57 and 538,989.57

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Solution

The fourth proportional to 991,697.49, 1,368,551.57 and 538,989.57 is: 743,810.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,697.49 : 1,368,551.57 = 538,989.57 : x
  2. Step 2: Convert to fraction form
    991,697.49/1,368,551.57 = 538,989.57/x
  3. Step 3: Cross multiply
    991,697.49x = 1,368,551.57 × 538,989.57
  4. Step 4: Simplify right side
    991,697.49x = 737,635,019,542.18
  5. Step 5: Solve for x
    x = 737,635,019,542.18/991,697.49
  6. Step 6: Final answer
    x = 743,810.51

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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.