Home / 890,013.96-1,334,873.25-321,285.96

Finding the Fourth Proportional to 890,013.96, 1,334,873.25 and 321,285.96

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Solution

The fourth proportional to 890,013.96, 1,334,873.25 and 321,285.96 is: 481,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,013.96 : 1,334,873.25 = 321,285.96 : x
  2. Step 2: Convert to fraction form
    890,013.96/1,334,873.25 = 321,285.96/x
  3. Step 3: Cross multiply
    890,013.96x = 1,334,873.25 × 321,285.96
  4. Step 4: Simplify right side
    890,013.96x = 428,876,033,604.57
  5. Step 5: Solve for x
    x = 428,876,033,604.57/890,013.96
  6. Step 6: Final answer
    x = 481,875.63

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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.