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Finding the Fourth Proportional to 511,325.52, 705,597.36 and 281,870.88

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Solution

The fourth proportional to 511,325.52, 705,597.36 and 281,870.88 is: 388,964.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,325.52 : 705,597.36 = 281,870.88 : x
  2. Step 2: Convert to fraction form
    511,325.52/705,597.36 = 281,870.88/x
  3. Step 3: Cross multiply
    511,325.52x = 705,597.36 × 281,870.88
  4. Step 4: Simplify right side
    511,325.52x = 198,887,348,788.88
  5. Step 5: Solve for x
    x = 198,887,348,788.88/511,325.52
  6. Step 6: Final answer
    x = 388,964.25

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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.