Home / 457,016.40-685,664.64-204,509.40

Finding the Fourth Proportional to 457,016.40, 685,664.64 and 204,509.40

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Solution

The fourth proportional to 457,016.40, 685,664.64 and 204,509.40 is: 306,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,016.40 : 685,664.64 = 204,509.40 : x
  2. Step 2: Convert to fraction form
    457,016.40/685,664.64 = 204,509.40/x
  3. Step 3: Cross multiply
    457,016.40x = 685,664.64 × 204,509.40
  4. Step 4: Simplify right side
    457,016.40x = 140,224,864,127.62
  5. Step 5: Solve for x
    x = 140,224,864,127.62/457,016.40
  6. Step 6: Final answer
    x = 306,826.77

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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.