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Finding the Fourth Proportional to 478,046.33, 659,678.88 and 263,144.42

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Solution

The fourth proportional to 478,046.33, 659,678.88 and 263,144.42 is: 363,125.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,046.33 : 659,678.88 = 263,144.42 : x
  2. Step 2: Convert to fraction form
    478,046.33/659,678.88 = 263,144.42/x
  3. Step 3: Cross multiply
    478,046.33x = 659,678.88 × 263,144.42
  4. Step 4: Simplify right side
    478,046.33x = 173,590,816,263.85
  5. Step 5: Solve for x
    x = 173,590,816,263.85/478,046.33
  6. Step 6: Final answer
    x = 363,125.51

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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.