Home / 664,046.20-994,514.10-505,415.80

Finding the Fourth Proportional to 664,046.20, 994,514.10 and 505,415.80

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Solution

The fourth proportional to 664,046.20, 994,514.10 and 505,415.80 is: 756,940.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,046.20 : 994,514.10 = 505,415.80 : x
  2. Step 2: Convert to fraction form
    664,046.20/994,514.10 = 505,415.80/x
  3. Step 3: Cross multiply
    664,046.20x = 994,514.10 × 505,415.80
  4. Step 4: Simplify right side
    664,046.20x = 502,643,139,462.78
  5. Step 5: Solve for x
    x = 502,643,139,462.78/664,046.20
  6. Step 6: Final answer
    x = 756,940.01

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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.