Home / 1,188,296.45-1,781,997.20-429,950.44

Finding the Fourth Proportional to 1,188,296.45, 1,781,997.20 and 429,950.44

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Solution

The fourth proportional to 1,188,296.45, 1,781,997.20 and 429,950.44 is: 644,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,296.45 : 1,781,997.20 = 429,950.44 : x
  2. Step 2: Convert to fraction form
    1,188,296.45/1,781,997.20 = 429,950.44/x
  3. Step 3: Cross multiply
    1,188,296.45x = 1,781,997.20 × 429,950.44
  4. Step 4: Simplify right side
    1,188,296.45x = 766,170,481,908.83
  5. Step 5: Solve for x
    x = 766,170,481,908.83/1,188,296.45
  6. Step 6: Final answer
    x = 644,763.76

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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.