Home / 1,188,297.20-1,781,998.32-429,951.20

Finding the Fourth Proportional to 1,188,297.20, 1,781,998.32 and 429,951.20

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Solution

The fourth proportional to 1,188,297.20, 1,781,998.32 and 429,951.20 is: 644,764.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,297.20 : 1,781,998.32 = 429,951.20 : x
  2. Step 2: Convert to fraction form
    1,188,297.20/1,781,998.32 = 429,951.20/x
  3. Step 3: Cross multiply
    1,188,297.20x = 1,781,998.32 × 429,951.20
  4. Step 4: Simplify right side
    1,188,297.20x = 766,172,307,171.99
  5. Step 5: Solve for x
    x = 766,172,307,171.99/1,188,297.20
  6. Step 6: Final answer
    x = 644,764.88

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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.