Home / 1,086,709.77-1,629,432.45-727,290.90

Finding the Fourth Proportional to 1,086,709.77, 1,629,432.45 and 727,290.90

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Solution

The fourth proportional to 1,086,709.77, 1,629,432.45 and 727,290.90 is: 1,090,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,709.77 : 1,629,432.45 = 727,290.90 : x
  2. Step 2: Convert to fraction form
    1,086,709.77/1,629,432.45 = 727,290.90/x
  3. Step 3: Cross multiply
    1,086,709.77x = 1,629,432.45 × 727,290.90
  4. Step 4: Simplify right side
    1,086,709.77x = 1,185,071,393,049.71
  5. Step 5: Solve for x
    x = 1,185,071,393,049.71/1,086,709.77
  6. Step 6: Final answer
    x = 1,090,513.24

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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.