Home / 1,226,890.80-1,693,149.66-675,665.28

Finding the Fourth Proportional to 1,226,890.80, 1,693,149.66 and 675,665.28

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Solution

The fourth proportional to 1,226,890.80, 1,693,149.66 and 675,665.28 is: 932,440.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,890.80 : 1,693,149.66 = 675,665.28 : x
  2. Step 2: Convert to fraction form
    1,226,890.80/1,693,149.66 = 675,665.28/x
  3. Step 3: Cross multiply
    1,226,890.80x = 1,693,149.66 × 675,665.28
  4. Step 4: Simplify right side
    1,226,890.80x = 1,144,002,439,105.80
  5. Step 5: Solve for x
    x = 1,144,002,439,105.80/1,226,890.80
  6. Step 6: Final answer
    x = 932,440.31

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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.