Home / 1,272,604.78-1,756,178.82-699,639.94

Finding the Fourth Proportional to 1,272,604.78, 1,756,178.82 and 699,639.94

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Solution

The fourth proportional to 1,272,604.78, 1,756,178.82 and 699,639.94 is: 965,494.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,604.78 : 1,756,178.82 = 699,639.94 : x
  2. Step 2: Convert to fraction form
    1,272,604.78/1,756,178.82 = 699,639.94/x
  3. Step 3: Cross multiply
    1,272,604.78x = 1,756,178.82 × 699,639.94
  4. Step 4: Simplify right side
    1,272,604.78x = 1,228,692,844,254.07
  5. Step 5: Solve for x
    x = 1,228,692,844,254.07/1,272,604.78
  6. Step 6: Final answer
    x = 965,494.44

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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.