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Finding the Fourth Proportional to 511,036.29, 704,771.69 and 320,067.45

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Solution

The fourth proportional to 511,036.29, 704,771.69 and 320,067.45 is: 441,405.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,036.29 : 704,771.69 = 320,067.45 : x
  2. Step 2: Convert to fraction form
    511,036.29/704,771.69 = 320,067.45/x
  3. Step 3: Cross multiply
    511,036.29x = 704,771.69 × 320,067.45
  4. Step 4: Simplify right side
    511,036.29x = 225,574,476,050.15
  5. Step 5: Solve for x
    x = 225,574,476,050.15/511,036.29
  6. Step 6: Final answer
    x = 441,405.98

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1.5x scale

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.