Home / 1,242,885.10-1,715,969.45-851,073.72

Finding the Fourth Proportional to 1,242,885.10, 1,715,969.45 and 851,073.72

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Solution

The fourth proportional to 1,242,885.10, 1,715,969.45 and 851,073.72 is: 1,175,021.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,885.10 : 1,715,969.45 = 851,073.72 : x
  2. Step 2: Convert to fraction form
    1,242,885.10/1,715,969.45 = 851,073.72/x
  3. Step 3: Cross multiply
    1,242,885.10x = 1,715,969.45 × 851,073.72
  4. Step 4: Simplify right side
    1,242,885.10x = 1,460,416,503,217.85
  5. Step 5: Solve for x
    x = 1,460,416,503,217.85/1,242,885.10
  6. Step 6: Final answer
    x = 1,175,021.33

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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.