Home / 428,564.16-591,378.60-237,561.24

Finding the Fourth Proportional to 428,564.16, 591,378.60 and 237,561.24

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Solution

The fourth proportional to 428,564.16, 591,378.60 and 237,561.24 is: 327,812.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,564.16 : 591,378.60 = 237,561.24 : x
  2. Step 2: Convert to fraction form
    428,564.16/591,378.60 = 237,561.24/x
  3. Step 3: Cross multiply
    428,564.16x = 591,378.60 × 237,561.24
  4. Step 4: Simplify right side
    428,564.16x = 140,488,633,525.46
  5. Step 5: Solve for x
    x = 140,488,633,525.46/428,564.16
  6. Step 6: Final answer
    x = 327,812.37

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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.