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Finding the Fourth Proportional to 513,064.80, 769,763.31 and 246,790.66

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Solution

The fourth proportional to 513,064.80, 769,763.31 and 246,790.66 is: 370,265.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,064.80 : 769,763.31 = 246,790.66 : x
  2. Step 2: Convert to fraction form
    513,064.80/769,763.31 = 246,790.66/x
  3. Step 3: Cross multiply
    513,064.80x = 769,763.31 × 246,790.66
  4. Step 4: Simplify right side
    513,064.80x = 189,970,395,318.69
  5. Step 5: Solve for x
    x = 189,970,395,318.69/513,064.80
  6. Step 6: Final answer
    x = 370,265.89

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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.