Home / 426,297.90-639,867.24-226,619.94

Finding the Fourth Proportional to 426,297.90, 639,867.24 and 226,619.94

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Solution

The fourth proportional to 426,297.90, 639,867.24 and 226,619.94 is: 340,153.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,297.90 : 639,867.24 = 226,619.94 : x
  2. Step 2: Convert to fraction form
    426,297.90/639,867.24 = 226,619.94/x
  3. Step 3: Cross multiply
    426,297.90x = 639,867.24 × 226,619.94
  4. Step 4: Simplify right side
    426,297.90x = 145,006,675,536.77
  5. Step 5: Solve for x
    x = 145,006,675,536.77/426,297.90
  6. Step 6: Final answer
    x = 340,153.39

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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.