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Finding the Fourth Proportional to 513,395.34, 768,516.56 and 322,964.07

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Solution

The fourth proportional to 513,395.34, 768,516.56 and 322,964.07 is: 483,454.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,395.34 : 768,516.56 = 322,964.07 : x
  2. Step 2: Convert to fraction form
    513,395.34/768,516.56 = 322,964.07/x
  3. Step 3: Cross multiply
    513,395.34x = 768,516.56 × 322,964.07
  4. Step 4: Simplify right side
    513,395.34x = 248,203,230,622.60
  5. Step 5: Solve for x
    x = 248,203,230,622.60/513,395.34
  6. Step 6: Final answer
    x = 483,454.39

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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.