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Finding the Fourth Proportional to 400,995.36, 601,078.32 and 190,473.12

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Solution

The fourth proportional to 400,995.36, 601,078.32 and 190,473.12 is: 285,512.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,995.36 : 601,078.32 = 190,473.12 : x
  2. Step 2: Convert to fraction form
    400,995.36/601,078.32 = 190,473.12/x
  3. Step 3: Cross multiply
    400,995.36x = 601,078.32 × 190,473.12
  4. Step 4: Simplify right side
    400,995.36x = 114,489,262,974.76
  5. Step 5: Solve for x
    x = 114,489,262,974.76/400,995.36
  6. Step 6: Final answer
    x = 285,512.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.