Home / 1,217,983.50-1,680,703.38-727,855.77

Finding the Fourth Proportional to 1,217,983.50, 1,680,703.38 and 727,855.77

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Solution

The fourth proportional to 1,217,983.50, 1,680,703.38 and 727,855.77 is: 1,004,372.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,983.50 : 1,680,703.38 = 727,855.77 : x
  2. Step 2: Convert to fraction form
    1,217,983.50/1,680,703.38 = 727,855.77/x
  3. Step 3: Cross multiply
    1,217,983.50x = 1,680,703.38 × 727,855.77
  4. Step 4: Simplify right side
    1,217,983.50x = 1,223,309,652,791.50
  5. Step 5: Solve for x
    x = 1,223,309,652,791.50/1,217,983.50
  6. Step 6: Final answer
    x = 1,004,372.93

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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.