Home / 1,272,592.72-1,756,162.20-699,627.88

Finding the Fourth Proportional to 1,272,592.72, 1,756,162.20 and 699,627.88

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Solution

The fourth proportional to 1,272,592.72, 1,756,162.20 and 699,627.88 is: 965,477.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,592.72 : 1,756,162.20 = 699,627.88 : x
  2. Step 2: Convert to fraction form
    1,272,592.72/1,756,162.20 = 699,627.88/x
  3. Step 3: Cross multiply
    1,272,592.72x = 1,756,162.20 × 699,627.88
  4. Step 4: Simplify right side
    1,272,592.72x = 1,228,660,036,922.14
  5. Step 5: Solve for x
    x = 1,228,660,036,922.14/1,272,592.72
  6. Step 6: Final answer
    x = 965,477.81

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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.