Home / 423,789.23-635,679.96-170,890.62

Finding the Fourth Proportional to 423,789.23, 635,679.96 and 170,890.62

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Solution

The fourth proportional to 423,789.23, 635,679.96 and 170,890.62 is: 256,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,789.23 : 635,679.96 = 170,890.62 : x
  2. Step 2: Convert to fraction form
    423,789.23/635,679.96 = 170,890.62/x
  3. Step 3: Cross multiply
    423,789.23x = 635,679.96 × 170,890.62
  4. Step 4: Simplify right side
    423,789.23x = 108,631,742,485.98
  5. Step 5: Solve for x
    x = 108,631,742,485.98/423,789.23
  6. Step 6: Final answer
    x = 256,334.37

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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.