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Finding the Fourth Proportional to 488,682.77, 673,982.38 and 343,967.62

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Solution

The fourth proportional to 488,682.77, 673,982.38 and 343,967.62 is: 474,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,682.77 : 673,982.38 = 343,967.62 : x
  2. Step 2: Convert to fraction form
    488,682.77/673,982.38 = 343,967.62/x
  3. Step 3: Cross multiply
    488,682.77x = 673,982.38 × 343,967.62
  4. Step 4: Simplify right side
    488,682.77x = 231,828,110,940.71
  5. Step 5: Solve for x
    x = 231,828,110,940.71/488,682.77
  6. Step 6: Final answer
    x = 474,393.87

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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.