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Finding the Fourth Proportional to 630,662.82, 870,333.39 and 344,201.46

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Solution

The fourth proportional to 630,662.82, 870,333.39 and 344,201.46 is: 475,008.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,662.82 : 870,333.39 = 344,201.46 : x
  2. Step 2: Convert to fraction form
    630,662.82/870,333.39 = 344,201.46/x
  3. Step 3: Cross multiply
    630,662.82x = 870,333.39 × 344,201.46
  4. Step 4: Simplify right side
    630,662.82x = 299,570,023,524.75
  5. Step 5: Solve for x
    x = 299,570,023,524.75/630,662.82
  6. Step 6: Final answer
    x = 475,008.22

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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.