Home / 389,664.48-537,770.16-325,889.76

Finding the Fourth Proportional to 389,664.48, 537,770.16 and 325,889.76

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Solution

The fourth proportional to 389,664.48, 537,770.16 and 325,889.76 is: 449,755.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,664.48 : 537,770.16 = 325,889.76 : x
  2. Step 2: Convert to fraction form
    389,664.48/537,770.16 = 325,889.76/x
  3. Step 3: Cross multiply
    389,664.48x = 537,770.16 × 325,889.76
  4. Step 4: Simplify right side
    389,664.48x = 175,253,788,377.56
  5. Step 5: Solve for x
    x = 175,253,788,377.56/389,664.48
  6. Step 6: Final answer
    x = 449,755.62

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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.