Home / 991,433.82-1,368,186.87-538,724.82

Finding the Fourth Proportional to 991,433.82, 1,368,186.87 and 538,724.82

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Solution

The fourth proportional to 991,433.82, 1,368,186.87 and 538,724.82 is: 743,444.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,433.82 : 1,368,186.87 = 538,724.82 : x
  2. Step 2: Convert to fraction form
    991,433.82/1,368,186.87 = 538,724.82/x
  3. Step 3: Cross multiply
    991,433.82x = 1,368,186.87 × 538,724.82
  4. Step 4: Simplify right side
    991,433.82x = 737,076,225,267.11
  5. Step 5: Solve for x
    x = 737,076,225,267.11/991,433.82
  6. Step 6: Final answer
    x = 743,444.71

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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.