Home / 1,272,456.42-1,756,031.85-699,520.74

Finding the Fourth Proportional to 1,272,456.42, 1,756,031.85 and 699,520.74

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Solution

The fourth proportional to 1,272,456.42, 1,756,031.85 and 699,520.74 is: 965,361.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,456.42 : 1,756,031.85 = 699,520.74 : x
  2. Step 2: Convert to fraction form
    1,272,456.42/1,756,031.85 = 699,520.74/x
  3. Step 3: Cross multiply
    1,272,456.42x = 1,756,031.85 × 699,520.74
  4. Step 4: Simplify right side
    1,272,456.42x = 1,228,380,699,175.57
  5. Step 5: Solve for x
    x = 1,228,380,699,175.57/1,272,456.42
  6. Step 6: Final answer
    x = 965,361.71

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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.