Home / 991,401.48-1,368,142.44-538,692.48

Finding the Fourth Proportional to 991,401.48, 1,368,142.44 and 538,692.48

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Solution

The fourth proportional to 991,401.48, 1,368,142.44 and 538,692.48 is: 743,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,401.48 : 1,368,142.44 = 538,692.48 : x
  2. Step 2: Convert to fraction form
    991,401.48/1,368,142.44 = 538,692.48/x
  3. Step 3: Cross multiply
    991,401.48x = 1,368,142.44 × 538,692.48
  4. Step 4: Simplify right side
    991,401.48x = 737,008,043,996.85
  5. Step 5: Solve for x
    x = 737,008,043,996.85/991,401.48
  6. Step 6: Final answer
    x = 743,400.19

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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.