Home / 478,022.78-659,667.84-263,166.50

Finding the Fourth Proportional to 478,022.78, 659,667.84 and 263,166.50

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Solution

The fourth proportional to 478,022.78, 659,667.84 and 263,166.50 is: 363,167.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,022.78 : 659,667.84 = 263,166.50 : x
  2. Step 2: Convert to fraction form
    478,022.78/659,667.84 = 263,166.50/x
  3. Step 3: Cross multiply
    478,022.78x = 659,667.84 × 263,166.50
  4. Step 4: Simplify right side
    478,022.78x = 173,602,476,615.36
  5. Step 5: Solve for x
    x = 173,602,476,615.36/478,022.78
  6. Step 6: Final answer
    x = 363,167.79

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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.