Home / 326,629.06-489,752.87-126,715.86

Finding the Fourth Proportional to 326,629.06, 489,752.87 and 126,715.86

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Solution

The fourth proportional to 326,629.06, 489,752.87 and 126,715.86 is: 189,999.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,629.06 : 489,752.87 = 126,715.86 : x
  2. Step 2: Convert to fraction form
    326,629.06/489,752.87 = 126,715.86/x
  3. Step 3: Cross multiply
    326,629.06x = 489,752.87 × 126,715.86
  4. Step 4: Simplify right side
    326,629.06x = 62,059,455,475.94
  5. Step 5: Solve for x
    x = 62,059,455,475.94/326,629.06
  6. Step 6: Final answer
    x = 189,999.80

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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.