Home / 709,121.58-1,063,539.30-259,689.02

Finding the Fourth Proportional to 709,121.58, 1,063,539.30 and 259,689.02

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Solution

The fourth proportional to 709,121.58, 1,063,539.30 and 259,689.02 is: 389,481.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,121.58 : 1,063,539.30 = 259,689.02 : x
  2. Step 2: Convert to fraction form
    709,121.58/1,063,539.30 = 259,689.02/x
  3. Step 3: Cross multiply
    709,121.58x = 1,063,539.30 × 259,689.02
  4. Step 4: Simplify right side
    709,121.58x = 276,189,478,548.49
  5. Step 5: Solve for x
    x = 276,189,478,548.49/709,121.58
  6. Step 6: Final answer
    x = 389,481.14

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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.