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Finding the Fourth Proportional to 648,003.05, 894,244.77 and 361,523.19

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Solution

The fourth proportional to 648,003.05, 894,244.77 and 361,523.19 is: 498,902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,003.05 : 894,244.77 = 361,523.19 : x
  2. Step 2: Convert to fraction form
    648,003.05/894,244.77 = 361,523.19/x
  3. Step 3: Cross multiply
    648,003.05x = 894,244.77 × 361,523.19
  4. Step 4: Simplify right side
    648,003.05x = 323,290,221,891.22
  5. Step 5: Solve for x
    x = 323,290,221,891.22/648,003.05
  6. Step 6: Final answer
    x = 498,902.32

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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.