Home / 689,865.10-1,034,797.94-310,342.54

Finding the Fourth Proportional to 689,865.10, 1,034,797.94 and 310,342.54

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Solution

The fourth proportional to 689,865.10, 1,034,797.94 and 310,342.54 is: 465,513.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,865.10 : 1,034,797.94 = 310,342.54 : x
  2. Step 2: Convert to fraction form
    689,865.10/1,034,797.94 = 310,342.54/x
  3. Step 3: Cross multiply
    689,865.10x = 1,034,797.94 × 310,342.54
  4. Step 4: Simplify right side
    689,865.10x = 321,141,821,086.37
  5. Step 5: Solve for x
    x = 321,141,821,086.37/689,865.10
  6. Step 6: Final answer
    x = 465,513.94

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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.