Home / 664,447.58-916,448.08-501,110.86

Finding the Fourth Proportional to 664,447.58, 916,448.08 and 501,110.86

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Solution

The fourth proportional to 664,447.58, 916,448.08 and 501,110.86 is: 691,163.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,447.58 : 916,448.08 = 501,110.86 : x
  2. Step 2: Convert to fraction form
    664,447.58/916,448.08 = 501,110.86/x
  3. Step 3: Cross multiply
    664,447.58x = 916,448.08 × 501,110.86
  4. Step 4: Simplify right side
    664,447.58x = 459,242,085,514.15
  5. Step 5: Solve for x
    x = 459,242,085,514.15/664,447.58
  6. Step 6: Final answer
    x = 691,163.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.