Home / 478,131.58-659,836.10-263,279.33

Finding the Fourth Proportional to 478,131.58, 659,836.10 and 263,279.33

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Solution

The fourth proportional to 478,131.58, 659,836.10 and 263,279.33 is: 363,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,131.58 : 659,836.10 = 263,279.33 : x
  2. Step 2: Convert to fraction form
    478,131.58/659,836.10 = 263,279.33/x
  3. Step 3: Cross multiply
    478,131.58x = 659,836.10 × 263,279.33
  4. Step 4: Simplify right side
    478,131.58x = 173,721,206,317.81
  5. Step 5: Solve for x
    x = 173,721,206,317.81/478,131.58
  6. Step 6: Final answer
    x = 363,333.47

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1.5x scale

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.