Home / 511,066.40-705,276.36-281,631.88

Finding the Fourth Proportional to 511,066.40, 705,276.36 and 281,631.88

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Solution

The fourth proportional to 511,066.40, 705,276.36 and 281,631.88 is: 388,654.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,066.40 : 705,276.36 = 281,631.88 : x
  2. Step 2: Convert to fraction form
    511,066.40/705,276.36 = 281,631.88/x
  3. Step 3: Cross multiply
    511,066.40x = 705,276.36 × 281,631.88
  4. Step 4: Simplify right side
    511,066.40x = 198,628,307,186.36
  5. Step 5: Solve for x
    x = 198,628,307,186.36/511,066.40
  6. Step 6: Final answer
    x = 388,654.60

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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.