Home / 513,846.20-770,730.90-214,249.40

Finding the Fourth Proportional to 513,846.20, 770,730.90 and 214,249.40

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Solution

The fourth proportional to 513,846.20, 770,730.90 and 214,249.40 is: 321,358.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,846.20 : 770,730.90 = 214,249.40 : x
  2. Step 2: Convert to fraction form
    513,846.20/770,730.90 = 214,249.40/x
  3. Step 3: Cross multiply
    513,846.20x = 770,730.90 × 214,249.40
  4. Step 4: Simplify right side
    513,846.20x = 165,128,632,886.46
  5. Step 5: Solve for x
    x = 165,128,632,886.46/513,846.20
  6. Step 6: Final answer
    x = 321,358.09

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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.