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Finding the Fourth Proportional to 673,450.38, 929,704.37 and 520,144.43

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Solution

The fourth proportional to 673,450.38, 929,704.37 and 520,144.43 is: 718,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,450.38 : 929,704.37 = 520,144.43 : x
  2. Step 2: Convert to fraction form
    673,450.38/929,704.37 = 520,144.43/x
  3. Step 3: Cross multiply
    673,450.38x = 929,704.37 × 520,144.43
  4. Step 4: Simplify right side
    673,450.38x = 483,580,542,352.92
  5. Step 5: Solve for x
    x = 483,580,542,352.92/673,450.38
  6. Step 6: Final answer
    x = 718,064.10

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Double scale
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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.