Home / 865,027.55-1,297,116.99-505,288.73

Finding the Fourth Proportional to 865,027.55, 1,297,116.99 and 505,288.73

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Solution

The fourth proportional to 865,027.55, 1,297,116.99 and 505,288.73 is: 757,685.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,027.55 : 1,297,116.99 = 505,288.73 : x
  2. Step 2: Convert to fraction form
    865,027.55/1,297,116.99 = 505,288.73/x
  3. Step 3: Cross multiply
    865,027.55x = 1,297,116.99 × 505,288.73
  4. Step 4: Simplify right side
    865,027.55x = 655,418,599,781.32
  5. Step 5: Solve for x
    x = 655,418,599,781.32/865,027.55
  6. Step 6: Final answer
    x = 757,685.23

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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.