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Finding the Fourth Proportional to 511,809.80, 715,600.60 and 511,809.80

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Solution

The fourth proportional to 511,809.80, 715,600.60 and 511,809.80 is: 715,600.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,809.80 : 715,600.60 = 511,809.80 : x
  2. Step 2: Convert to fraction form
    511,809.80/715,600.60 = 511,809.80/x
  3. Step 3: Cross multiply
    511,809.80x = 715,600.60 × 511,809.80
  4. Step 4: Simplify right side
    511,809.80x = 366,251,399,965.88
  5. Step 5: Solve for x
    x = 366,251,399,965.88/511,809.80
  6. Step 6: Final answer
    x = 715,600.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.