Home / 815,027.72-1,222,483.86-215,975.61

Finding the Fourth Proportional to 815,027.72, 1,222,483.86 and 215,975.61

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Solution

The fourth proportional to 815,027.72, 1,222,483.86 and 215,975.61 is: 323,948.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,027.72 : 1,222,483.86 = 215,975.61 : x
  2. Step 2: Convert to fraction form
    815,027.72/1,222,483.86 = 215,975.61/x
  3. Step 3: Cross multiply
    815,027.72x = 1,222,483.86 × 215,975.61
  4. Step 4: Simplify right side
    815,027.72x = 264,026,697,378.66
  5. Step 5: Solve for x
    x = 264,026,697,378.66/815,027.72
  6. Step 6: Final answer
    x = 323,948.12

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1.5x scale

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.