Home / 478,020.78-659,665.08-263,164.50

Finding the Fourth Proportional to 478,020.78, 659,665.08 and 263,164.50

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Solution

The fourth proportional to 478,020.78, 659,665.08 and 263,164.50 is: 363,165.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,020.78 : 659,665.08 = 263,164.50 : x
  2. Step 2: Convert to fraction form
    478,020.78/659,665.08 = 263,164.50/x
  3. Step 3: Cross multiply
    478,020.78x = 659,665.08 × 263,164.50
  4. Step 4: Simplify right side
    478,020.78x = 173,600,430,945.66
  5. Step 5: Solve for x
    x = 173,600,430,945.66/478,020.78
  6. Step 6: Final answer
    x = 363,165.03

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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.