Home / 511,066.40-705,276.35-281,631.89

Finding the Fourth Proportional to 511,066.40, 705,276.35 and 281,631.89

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Solution

The fourth proportional to 511,066.40, 705,276.35 and 281,631.89 is: 388,654.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,066.40 : 705,276.35 = 281,631.89 : x
  2. Step 2: Convert to fraction form
    511,066.40/705,276.35 = 281,631.89/x
  3. Step 3: Cross multiply
    511,066.40x = 705,276.35 × 281,631.89
  4. Step 4: Simplify right side
    511,066.40x = 198,628,311,422.80
  5. Step 5: Solve for x
    x = 198,628,311,422.80/511,066.40
  6. Step 6: Final answer
    x = 388,654.61

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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.