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Finding the Fourth Proportional to 442,504.73, 610,435.46 and 279,363.42

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Solution

The fourth proportional to 442,504.73, 610,435.46 and 279,363.42 is: 385,381.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,504.73 : 610,435.46 = 279,363.42 : x
  2. Step 2: Convert to fraction form
    442,504.73/610,435.46 = 279,363.42/x
  3. Step 3: Cross multiply
    442,504.73x = 610,435.46 × 279,363.42
  4. Step 4: Simplify right side
    442,504.73x = 170,533,336,398.06
  5. Step 5: Solve for x
    x = 170,533,336,398.06/442,504.73
  6. Step 6: Final answer
    x = 385,381.96

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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.