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Finding the Fourth Proportional to 520,349.72, 718,202.60 and 338,745.34

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Solution

The fourth proportional to 520,349.72, 718,202.60 and 338,745.34 is: 467,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,349.72 : 718,202.60 = 338,745.34 : x
  2. Step 2: Convert to fraction form
    520,349.72/718,202.60 = 338,745.34/x
  3. Step 3: Cross multiply
    520,349.72x = 718,202.60 × 338,745.34
  4. Step 4: Simplify right side
    520,349.72x = 243,287,784,400.21
  5. Step 5: Solve for x
    x = 243,287,784,400.21/520,349.72
  6. Step 6: Final answer
    x = 467,546.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.