Home / 1,272,689.20-1,756,266.20-699,724.96

Finding the Fourth Proportional to 1,272,689.20, 1,756,266.20 and 699,724.96

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Solution

The fourth proportional to 1,272,689.20, 1,756,266.20 and 699,724.96 is: 965,595.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,689.20 : 1,756,266.20 = 699,724.96 : x
  2. Step 2: Convert to fraction form
    1,272,689.20/1,756,266.20 = 699,724.96/x
  3. Step 3: Cross multiply
    1,272,689.20x = 1,756,266.20 × 699,724.96
  4. Step 4: Simplify right side
    1,272,689.20x = 1,228,903,296,544.35
  5. Step 5: Solve for x
    x = 1,228,903,296,544.35/1,272,689.20
  6. Step 6: Final answer
    x = 965,595.76

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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.