Home / 428,007.09-590,667.57-237,020.64

Finding the Fourth Proportional to 428,007.09, 590,667.57 and 237,020.64

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Solution

The fourth proportional to 428,007.09, 590,667.57 and 237,020.64 is: 327,098.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,007.09 : 590,667.57 = 237,020.64 : x
  2. Step 2: Convert to fraction form
    428,007.09/590,667.57 = 237,020.64/x
  3. Step 3: Cross multiply
    428,007.09x = 590,667.57 × 237,020.64
  4. Step 4: Simplify right side
    428,007.09x = 140,000,405,468.65
  5. Step 5: Solve for x
    x = 140,000,405,468.65/428,007.09
  6. Step 6: Final answer
    x = 327,098.33

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1.5x scale

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.