Home / 863,665.84-1,295,664.81-331,145.34

Finding the Fourth Proportional to 863,665.84, 1,295,664.81 and 331,145.34

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Solution

The fourth proportional to 863,665.84, 1,295,664.81 and 331,145.34 is: 496,781.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,665.84 : 1,295,664.81 = 331,145.34 : x
  2. Step 2: Convert to fraction form
    863,665.84/1,295,664.81 = 331,145.34/x
  3. Step 3: Cross multiply
    863,665.84x = 1,295,664.81 × 331,145.34
  4. Step 4: Simplify right side
    863,665.84x = 429,053,355,899.44
  5. Step 5: Solve for x
    x = 429,053,355,899.44/863,665.84
  6. Step 6: Final answer
    x = 496,781.67

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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.