Home / 543,399.23-749,876.33-325,730.87

Finding the Fourth Proportional to 543,399.23, 749,876.33 and 325,730.87

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Solution

The fourth proportional to 543,399.23, 749,876.33 and 325,730.87 is: 449,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,399.23 : 749,876.33 = 325,730.87 : x
  2. Step 2: Convert to fraction form
    543,399.23/749,876.33 = 325,730.87/x
  3. Step 3: Cross multiply
    543,399.23x = 749,876.33 × 325,730.87
  4. Step 4: Simplify right side
    543,399.23x = 244,257,866,428.25
  5. Step 5: Solve for x
    x = 244,257,866,428.25/543,399.23
  6. Step 6: Final answer
    x = 449,499.84

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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.