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Finding the Fourth Proportional to 488,006.55, 673,353.32 and 306,613.38

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Solution

The fourth proportional to 488,006.55, 673,353.32 and 306,613.38 is: 423,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,006.55 : 673,353.32 = 306,613.38 : x
  2. Step 2: Convert to fraction form
    488,006.55/673,353.32 = 306,613.38/x
  3. Step 3: Cross multiply
    488,006.55x = 673,353.32 × 306,613.38
  4. Step 4: Simplify right side
    488,006.55x = 206,459,135,846.36
  5. Step 5: Solve for x
    x = 206,459,135,846.36/488,006.55
  6. Step 6: Final answer
    x = 423,066.32

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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.