Home / 428,240.74-590,996.96-234,648.80

Finding the Fourth Proportional to 428,240.74, 590,996.96 and 234,648.80

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Solution

The fourth proportional to 428,240.74, 590,996.96 and 234,648.80 is: 323,828.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,240.74 : 590,996.96 = 234,648.80 : x
  2. Step 2: Convert to fraction form
    428,240.74/590,996.96 = 234,648.80/x
  3. Step 3: Cross multiply
    428,240.74x = 590,996.96 × 234,648.80
  4. Step 4: Simplify right side
    428,240.74x = 138,676,727,467.65
  5. Step 5: Solve for x
    x = 138,676,727,467.65/428,240.74
  6. Step 6: Final answer
    x = 323,828.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.