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Finding the Fourth Proportional to 667,051.22, 920,524.10 and 361,119.51

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Solution

The fourth proportional to 667,051.22, 920,524.10 and 361,119.51 is: 498,341.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,051.22 : 920,524.10 = 361,119.51 : x
  2. Step 2: Convert to fraction form
    667,051.22/920,524.10 = 361,119.51/x
  3. Step 3: Cross multiply
    667,051.22x = 920,524.10 × 361,119.51
  4. Step 4: Simplify right side
    667,051.22x = 332,419,210,129.59
  5. Step 5: Solve for x
    x = 332,419,210,129.59/667,051.22
  6. Step 6: Final answer
    x = 498,341.36

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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.