Home / 555,731.60-766,910.36-301,082.78

Finding the Fourth Proportional to 555,731.60, 766,910.36 and 301,082.78

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Solution

The fourth proportional to 555,731.60, 766,910.36 and 301,082.78 is: 415,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,731.60 : 766,910.36 = 301,082.78 : x
  2. Step 2: Convert to fraction form
    555,731.60/766,910.36 = 301,082.78/x
  3. Step 3: Cross multiply
    555,731.60x = 766,910.36 × 301,082.78
  4. Step 4: Simplify right side
    555,731.60x = 230,903,503,199.60
  5. Step 5: Solve for x
    x = 230,903,503,199.60/555,731.60
  6. Step 6: Final answer
    x = 415,494.64

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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.