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Finding the Fourth Proportional to 636,009.64, 954,058.62 and 215,143.24

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Solution

The fourth proportional to 636,009.64, 954,058.62 and 215,143.24 is: 322,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,009.64 : 954,058.62 = 215,143.24 : x
  2. Step 2: Convert to fraction form
    636,009.64/954,058.62 = 215,143.24/x
  3. Step 3: Cross multiply
    636,009.64x = 954,058.62 × 215,143.24
  4. Step 4: Simplify right side
    636,009.64x = 205,259,262,656.73
  5. Step 5: Solve for x
    x = 205,259,262,656.73/636,009.64
  6. Step 6: Final answer
    x = 322,729.80

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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.