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Finding the Fourth Proportional to 507,994.11, 701,063.46 and 281,639.61

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Solution

The fourth proportional to 507,994.11, 701,063.46 and 281,639.61 is: 388,680.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,994.11 : 701,063.46 = 281,639.61 : x
  2. Step 2: Convert to fraction form
    507,994.11/701,063.46 = 281,639.61/x
  3. Step 3: Cross multiply
    507,994.11x = 701,063.46 × 281,639.61
  4. Step 4: Simplify right side
    507,994.11x = 197,447,239,459.65
  5. Step 5: Solve for x
    x = 197,447,239,459.65/507,994.11
  6. Step 6: Final answer
    x = 388,680.17

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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.