Home / 685,180.08-1,027,776.60-306,119.88

Finding the Fourth Proportional to 685,180.08, 1,027,776.60 and 306,119.88

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Solution

The fourth proportional to 685,180.08, 1,027,776.60 and 306,119.88 is: 459,182.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,180.08 : 1,027,776.60 = 306,119.88 : x
  2. Step 2: Convert to fraction form
    685,180.08/1,027,776.60 = 306,119.88/x
  3. Step 3: Cross multiply
    685,180.08x = 1,027,776.60 × 306,119.88
  4. Step 4: Simplify right side
    685,180.08x = 314,622,849,458.81
  5. Step 5: Solve for x
    x = 314,622,849,458.81/685,180.08
  6. Step 6: Final answer
    x = 459,182.72

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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.