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Finding the Fourth Proportional to 453,005.80, 680,027.10 and 266,122.60

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Solution

The fourth proportional to 453,005.80, 680,027.10 and 266,122.60 is: 399,488.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,005.80 : 680,027.10 = 266,122.60 : x
  2. Step 2: Convert to fraction form
    453,005.80/680,027.10 = 266,122.60/x
  3. Step 3: Cross multiply
    453,005.80x = 680,027.10 × 266,122.60
  4. Step 4: Simplify right side
    453,005.80x = 180,970,579,922.46
  5. Step 5: Solve for x
    x = 180,970,579,922.46/453,005.80
  6. Step 6: Final answer
    x = 399,488.44

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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.