Home / 685,146.78-1,027,695.53-179,703.72

Finding the Fourth Proportional to 685,146.78, 1,027,695.53 and 179,703.72

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Solution

The fourth proportional to 685,146.78, 1,027,695.53 and 179,703.72 is: 269,549.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,146.78 : 1,027,695.53 = 179,703.72 : x
  2. Step 2: Convert to fraction form
    685,146.78/1,027,695.53 = 179,703.72/x
  3. Step 3: Cross multiply
    685,146.78x = 1,027,695.53 × 179,703.72
  4. Step 4: Simplify right side
    685,146.78x = 184,680,710,217.63
  5. Step 5: Solve for x
    x = 184,680,710,217.63/685,146.78
  6. Step 6: Final answer
    x = 269,549.12

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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.