Home / 543,211.23-749,709.60-325,429.22

Finding the Fourth Proportional to 543,211.23, 749,709.60 and 325,429.22

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Solution

The fourth proportional to 543,211.23, 749,709.60 and 325,429.22 is: 449,139.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,211.23 : 749,709.60 = 325,429.22 : x
  2. Step 2: Convert to fraction form
    543,211.23/749,709.60 = 325,429.22/x
  3. Step 3: Cross multiply
    543,211.23x = 749,709.60 × 325,429.22
  4. Step 4: Simplify right side
    543,211.23x = 243,977,413,449.15
  5. Step 5: Solve for x
    x = 243,977,413,449.15/543,211.23
  6. Step 6: Final answer
    x = 449,139.12

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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.