Home / 313,919.34-467,921.79-288,725.10

Finding the Fourth Proportional to 313,919.34, 467,921.79 and 288,725.10

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Solution

The fourth proportional to 313,919.34, 467,921.79 and 288,725.10 is: 430,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,919.34 : 467,921.79 = 288,725.10 : x
  2. Step 2: Convert to fraction form
    313,919.34/467,921.79 = 288,725.10/x
  3. Step 3: Cross multiply
    313,919.34x = 467,921.79 × 288,725.10
  4. Step 4: Simplify right side
    313,919.34x = 135,100,765,609.93
  5. Step 5: Solve for x
    x = 135,100,765,609.93/313,919.34
  6. Step 6: Final answer
    x = 430,367.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.