Home / 3,477,377.78-5,215,476.18-918,620.58

Finding the Fourth Proportional to 3,477,377.78, 5,215,476.18 and 918,620.58

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Solution

The fourth proportional to 3,477,377.78, 5,215,476.18 and 918,620.58 is: 1,377,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477,377.78 : 5,215,476.18 = 918,620.58 : x
  2. Step 2: Convert to fraction form
    3,477,377.78/5,215,476.18 = 918,620.58/x
  3. Step 3: Cross multiply
    3,477,377.78x = 5,215,476.18 × 918,620.58
  4. Step 4: Simplify right side
    3,477,377.78x = 4,791,043,753,447.78
  5. Step 5: Solve for x
    x = 4,791,043,753,447.78/3,477,377.78
  6. Step 6: Final answer
    x = 1,377,774.88

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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.