Home / 689,747.54-1,034,609.36-310,399.83

Finding the Fourth Proportional to 689,747.54, 1,034,609.36 and 310,399.83

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Solution

The fourth proportional to 689,747.54, 1,034,609.36 and 310,399.83 is: 465,594.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,747.54 : 1,034,609.36 = 310,399.83 : x
  2. Step 2: Convert to fraction form
    689,747.54/1,034,609.36 = 310,399.83/x
  3. Step 3: Cross multiply
    689,747.54x = 1,034,609.36 × 310,399.83
  4. Step 4: Simplify right side
    689,747.54x = 321,142,567,908.41
  5. Step 5: Solve for x
    x = 321,142,567,908.41/689,747.54
  6. Step 6: Final answer
    x = 465,594.37

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1.5x scale

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.