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Finding the Fourth Proportional to 707,067.52, 975,743.04 and 389,115.52

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Solution

The fourth proportional to 707,067.52, 975,743.04 and 389,115.52 is: 536,973.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,067.52 : 975,743.04 = 389,115.52 : x
  2. Step 2: Convert to fraction form
    707,067.52/975,743.04 = 389,115.52/x
  3. Step 3: Cross multiply
    707,067.52x = 975,743.04 × 389,115.52
  4. Step 4: Simplify right side
    707,067.52x = 379,676,760,395.98
  5. Step 5: Solve for x
    x = 379,676,760,395.98/707,067.52
  6. Step 6: Final answer
    x = 536,973.84

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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.