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Finding the Fourth Proportional to 459,959.28, 634,664.79 and 422,753.73

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Solution

The fourth proportional to 459,959.28, 634,664.79 and 422,753.73 is: 583,327.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,959.28 : 634,664.79 = 422,753.73 : x
  2. Step 2: Convert to fraction form
    459,959.28/634,664.79 = 422,753.73/x
  3. Step 3: Cross multiply
    459,959.28x = 634,664.79 × 422,753.73
  4. Step 4: Simplify right side
    459,959.28x = 268,306,907,272.17
  5. Step 5: Solve for x
    x = 268,306,907,272.17/459,959.28
  6. Step 6: Final answer
    x = 583,327.52

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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.