Home / 379,007.86-522,971.39-217,832.79

Finding the Fourth Proportional to 379,007.86, 522,971.39 and 217,832.79

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Solution

The fourth proportional to 379,007.86, 522,971.39 and 217,832.79 is: 300,575.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,007.86 : 522,971.39 = 217,832.79 : x
  2. Step 2: Convert to fraction form
    379,007.86/522,971.39 = 217,832.79/x
  3. Step 3: Cross multiply
    379,007.86x = 522,971.39 × 217,832.79
  4. Step 4: Simplify right side
    379,007.86x = 113,920,318,254.29
  5. Step 5: Solve for x
    x = 113,920,318,254.29/379,007.86
  6. Step 6: Final answer
    x = 300,575.08

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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.