Home / 744,858.20-1,117,297.72-212,379.44

Finding the Fourth Proportional to 744,858.20, 1,117,297.72 and 212,379.44

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Solution

The fourth proportional to 744,858.20, 1,117,297.72 and 212,379.44 is: 318,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,858.20 : 1,117,297.72 = 212,379.44 : x
  2. Step 2: Convert to fraction form
    744,858.20/1,117,297.72 = 212,379.44/x
  3. Step 3: Cross multiply
    744,858.20x = 1,117,297.72 × 212,379.44
  4. Step 4: Simplify right side
    744,858.20x = 237,291,064,086.88
  5. Step 5: Solve for x
    x = 237,291,064,086.88/744,858.20
  6. Step 6: Final answer
    x = 318,572.13

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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.