Home / 685,140.96-1,027,455.84-235,734.72

Finding the Fourth Proportional to 685,140.96, 1,027,455.84 and 235,734.72

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Solution

The fourth proportional to 685,140.96, 1,027,455.84 and 235,734.72 is: 353,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,140.96 : 1,027,455.84 = 235,734.72 : x
  2. Step 2: Convert to fraction form
    685,140.96/1,027,455.84 = 235,734.72/x
  3. Step 3: Cross multiply
    685,140.96x = 1,027,455.84 × 235,734.72
  4. Step 4: Simplify right side
    685,140.96x = 242,207,014,754.77
  5. Step 5: Solve for x
    x = 242,207,014,754.77/685,140.96
  6. Step 6: Final answer
    x = 353,514.14

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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.