Home / 510,471.75-766,181.07-257,929.61

Finding the Fourth Proportional to 510,471.75, 766,181.07 and 257,929.61

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Solution

The fourth proportional to 510,471.75, 766,181.07 and 257,929.61 is: 387,133.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,471.75 : 766,181.07 = 257,929.61 : x
  2. Step 2: Convert to fraction form
    510,471.75/766,181.07 = 257,929.61/x
  3. Step 3: Cross multiply
    510,471.75x = 766,181.07 × 257,929.61
  4. Step 4: Simplify right side
    510,471.75x = 197,620,780,743.58
  5. Step 5: Solve for x
    x = 197,620,780,743.58/510,471.75
  6. Step 6: Final answer
    x = 387,133.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.