Home / 756,003.80-1,134,005.70-336,099.80

Finding the Fourth Proportional to 756,003.80, 1,134,005.70 and 336,099.80

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Solution

The fourth proportional to 756,003.80, 1,134,005.70 and 336,099.80 is: 504,149.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,003.80 : 1,134,005.70 = 336,099.80 : x
  2. Step 2: Convert to fraction form
    756,003.80/1,134,005.70 = 336,099.80/x
  3. Step 3: Cross multiply
    756,003.80x = 1,134,005.70 × 336,099.80
  4. Step 4: Simplify right side
    756,003.80x = 381,139,088,968.86
  5. Step 5: Solve for x
    x = 381,139,088,968.86/756,003.80
  6. Step 6: Final answer
    x = 504,149.70

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Double scale
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Similar ratio
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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.