Home / 685,709.92-1,028,632.51-236,371.64

Finding the Fourth Proportional to 685,709.92, 1,028,632.51 and 236,371.64

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Solution

The fourth proportional to 685,709.92, 1,028,632.51 and 236,371.64 is: 354,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,709.92 : 1,028,632.51 = 236,371.64 : x
  2. Step 2: Convert to fraction form
    685,709.92/1,028,632.51 = 236,371.64/x
  3. Step 3: Cross multiply
    685,709.92x = 1,028,632.51 × 236,371.64
  4. Step 4: Simplify right side
    685,709.92x = 243,139,548,498.32
  5. Step 5: Solve for x
    x = 243,139,548,498.32/685,709.92
  6. Step 6: Final answer
    x = 354,580.77

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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.