Home / 1,272,890.88-1,756,529.28-699,955.20

Finding the Fourth Proportional to 1,272,890.88, 1,756,529.28 and 699,955.20

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Solution

The fourth proportional to 1,272,890.88, 1,756,529.28 and 699,955.20 is: 965,905.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,890.88 : 1,756,529.28 = 699,955.20 : x
  2. Step 2: Convert to fraction form
    1,272,890.88/1,756,529.28 = 699,955.20/x
  3. Step 3: Cross multiply
    1,272,890.88x = 1,756,529.28 × 699,955.20
  4. Step 4: Simplify right side
    1,272,890.88x = 1,229,491,803,488.26
  5. Step 5: Solve for x
    x = 1,229,491,803,488.26/1,272,890.88
  6. Step 6: Final answer
    x = 965,905.11

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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.