Home / 1,231,675.80-1,848,128.10-699,605.40

Finding the Fourth Proportional to 1,231,675.80, 1,848,128.10 and 699,605.40

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Solution

The fourth proportional to 1,231,675.80, 1,848,128.10 and 699,605.40 is: 1,049,757.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,675.80 : 1,848,128.10 = 699,605.40 : x
  2. Step 2: Convert to fraction form
    1,231,675.80/1,848,128.10 = 699,605.40/x
  3. Step 3: Cross multiply
    1,231,675.80x = 1,848,128.10 × 699,605.40
  4. Step 4: Simplify right side
    1,231,675.80x = 1,292,960,398,651.74
  5. Step 5: Solve for x
    x = 1,292,960,398,651.74/1,231,675.80
  6. Step 6: Final answer
    x = 1,049,757.09

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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.