Home / 3,758,892.12-5,638,338.18-918,970.56

Finding the Fourth Proportional to 3,758,892.12, 5,638,338.18 and 918,970.56

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Solution

The fourth proportional to 3,758,892.12, 5,638,338.18 and 918,970.56 is: 1,378,455.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,758,892.12 : 5,638,338.18 = 918,970.56 : x
  2. Step 2: Convert to fraction form
    3,758,892.12/5,638,338.18 = 918,970.56/x
  3. Step 3: Cross multiply
    3,758,892.12x = 5,638,338.18 × 918,970.56
  4. Step 4: Simplify right side
    3,758,892.12x = 5,181,466,794,743.98
  5. Step 5: Solve for x
    x = 5,181,466,794,743.98/3,758,892.12
  6. Step 6: Final answer
    x = 1,378,455.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.