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Finding the Fourth Proportional to 1,309,973.64, 1,964,960.30 and 363,344.36

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Solution

The fourth proportional to 1,309,973.64, 1,964,960.30 and 363,344.36 is: 545,016.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,973.64 : 1,964,960.30 = 363,344.36 : x
  2. Step 2: Convert to fraction form
    1,309,973.64/1,964,960.30 = 363,344.36/x
  3. Step 3: Cross multiply
    1,309,973.64x = 1,964,960.30 × 363,344.36
  4. Step 4: Simplify right side
    1,309,973.64x = 713,957,230,987.39
  5. Step 5: Solve for x
    x = 713,957,230,987.39/1,309,973.64
  6. Step 6: Final answer
    x = 545,016.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.