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Finding the Fourth Proportional to 626,263.72, 938,987.34 and 266,247.88

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Solution

The fourth proportional to 626,263.72, 938,987.34 and 266,247.88 is: 399,198.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,263.72 : 938,987.34 = 266,247.88 : x
  2. Step 2: Convert to fraction form
    626,263.72/938,987.34 = 266,247.88/x
  3. Step 3: Cross multiply
    626,263.72x = 938,987.34 × 266,247.88
  4. Step 4: Simplify right side
    626,263.72x = 250,003,388,621.84
  5. Step 5: Solve for x
    x = 250,003,388,621.84/626,263.72
  6. Step 6: Final answer
    x = 399,198.26

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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.