Home / 689,759.78-1,034,337.99-347,992.88

Finding the Fourth Proportional to 689,759.78, 1,034,337.99 and 347,992.88

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Solution

The fourth proportional to 689,759.78, 1,034,337.99 and 347,992.88 is: 521,837.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,759.78 : 1,034,337.99 = 347,992.88 : x
  2. Step 2: Convert to fraction form
    689,759.78/1,034,337.99 = 347,992.88/x
  3. Step 3: Cross multiply
    689,759.78x = 1,034,337.99 × 347,992.88
  4. Step 4: Simplify right side
    689,759.78x = 359,942,256,033.51
  5. Step 5: Solve for x
    x = 359,942,256,033.51/689,759.78
  6. Step 6: Final answer
    x = 521,837.12

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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.