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Finding the Fourth Proportional to 452,991.80, 680,006.10 and 266,108.60

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Solution

The fourth proportional to 452,991.80, 680,006.10 and 266,108.60 is: 399,467.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,991.80 : 680,006.10 = 266,108.60 : x
  2. Step 2: Convert to fraction form
    452,991.80/680,006.10 = 266,108.60/x
  3. Step 3: Cross multiply
    452,991.80x = 680,006.10 × 266,108.60
  4. Step 4: Simplify right side
    452,991.80x = 180,955,471,262.46
  5. Step 5: Solve for x
    x = 180,955,471,262.46/452,991.80
  6. Step 6: Final answer
    x = 399,467.43

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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.