Home / 511,333.45-705,644.81-281,899.04

Finding the Fourth Proportional to 511,333.45, 705,644.81 and 281,899.04

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Solution

The fourth proportional to 511,333.45, 705,644.81 and 281,899.04 is: 389,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,333.45 : 705,644.81 = 281,899.04 : x
  2. Step 2: Convert to fraction form
    511,333.45/705,644.81 = 281,899.04/x
  3. Step 3: Cross multiply
    511,333.45x = 705,644.81 × 281,899.04
  4. Step 4: Simplify right side
    511,333.45x = 198,920,590,639.39
  5. Step 5: Solve for x
    x = 198,920,590,639.39/511,333.45
  6. Step 6: Final answer
    x = 389,023.23

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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.