Home / 1,280,198.27-1,919,875.29-427,034.82

Finding the Fourth Proportional to 1,280,198.27, 1,919,875.29 and 427,034.82

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Solution

The fourth proportional to 1,280,198.27, 1,919,875.29 and 427,034.82 is: 640,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,198.27 : 1,919,875.29 = 427,034.82 : x
  2. Step 2: Convert to fraction form
    1,280,198.27/1,919,875.29 = 427,034.82/x
  3. Step 3: Cross multiply
    1,280,198.27x = 1,919,875.29 × 427,034.82
  4. Step 4: Simplify right side
    1,280,198.27x = 819,853,594,887.49
  5. Step 5: Solve for x
    x = 819,853,594,887.49/1,280,198.27
  6. Step 6: Final answer
    x = 640,411.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.