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Finding the Fourth Proportional to 673,307.46, 929,183.72 and 371,520.90

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Solution

The fourth proportional to 673,307.46, 929,183.72 and 371,520.90 is: 512,709.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,307.46 : 929,183.72 = 371,520.90 : x
  2. Step 2: Convert to fraction form
    673,307.46/929,183.72 = 371,520.90/x
  3. Step 3: Cross multiply
    673,307.46x = 929,183.72 × 371,520.90
  4. Step 4: Simplify right side
    673,307.46x = 345,211,170,062.14
  5. Step 5: Solve for x
    x = 345,211,170,062.14/673,307.46
  6. Step 6: Final answer
    x = 512,709.56

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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.