Home / 457,259.07-685,955.44-220,406.97

Finding the Fourth Proportional to 457,259.07, 685,955.44 and 220,406.97

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Solution

The fourth proportional to 457,259.07, 685,955.44 and 220,406.97 is: 330,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,259.07 : 685,955.44 = 220,406.97 : x
  2. Step 2: Convert to fraction form
    457,259.07/685,955.44 = 220,406.97/x
  3. Step 3: Cross multiply
    457,259.07x = 685,955.44 × 220,406.97
  4. Step 4: Simplify right side
    457,259.07x = 151,189,362,933.26
  5. Step 5: Solve for x
    x = 151,189,362,933.26/457,259.07
  6. Step 6: Final answer
    x = 330,642.67

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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.