Home / 689,760.66-1,034,339.30-347,993.76

Finding the Fourth Proportional to 689,760.66, 1,034,339.30 and 347,993.76

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Solution

The fourth proportional to 689,760.66, 1,034,339.30 and 347,993.76 is: 521,838.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,760.66 : 1,034,339.30 = 347,993.76 : x
  2. Step 2: Convert to fraction form
    689,760.66/1,034,339.30 = 347,993.76/x
  3. Step 3: Cross multiply
    689,760.66x = 1,034,339.30 × 347,993.76
  4. Step 4: Simplify right side
    689,760.66x = 359,943,622,122.77
  5. Step 5: Solve for x
    x = 359,943,622,122.77/689,760.66
  6. Step 6: Final answer
    x = 521,838.43

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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.