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Finding the Fourth Proportional to 478,129.58, 659,833.34 and 263,277.33

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Solution

The fourth proportional to 478,129.58, 659,833.34 and 263,277.33 is: 363,330.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,129.58 : 659,833.34 = 263,277.33 : x
  2. Step 2: Convert to fraction form
    478,129.58/659,833.34 = 263,277.33/x
  3. Step 3: Cross multiply
    478,129.58x = 659,833.34 × 263,277.33
  4. Step 4: Simplify right side
    478,129.58x = 173,719,158,683.80
  5. Step 5: Solve for x
    x = 173,719,158,683.80/478,129.58
  6. Step 6: Final answer
    x = 363,330.71

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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.