Home / 674,612.70-1,011,919.05-253,982.94

Finding the Fourth Proportional to 674,612.70, 1,011,919.05 and 253,982.94

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Solution

The fourth proportional to 674,612.70, 1,011,919.05 and 253,982.94 is: 380,974.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,612.70 : 1,011,919.05 = 253,982.94 : x
  2. Step 2: Convert to fraction form
    674,612.70/1,011,919.05 = 253,982.94/x
  3. Step 3: Cross multiply
    674,612.70x = 1,011,919.05 × 253,982.94
  4. Step 4: Simplify right side
    674,612.70x = 257,010,175,361.01
  5. Step 5: Solve for x
    x = 257,010,175,361.01/674,612.70
  6. Step 6: Final answer
    x = 380,974.41

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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.