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Finding the Fourth Proportional to 1,309,984.86, 1,964,977.17 and 363,355.62

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Solution

The fourth proportional to 1,309,984.86, 1,964,977.17 and 363,355.62 is: 545,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,984.86 : 1,964,977.17 = 363,355.62 : x
  2. Step 2: Convert to fraction form
    1,309,984.86/1,964,977.17 = 363,355.62/x
  3. Step 3: Cross multiply
    1,309,984.86x = 1,964,977.17 × 363,355.62
  4. Step 4: Simplify right side
    1,309,984.86x = 713,985,497,891.20
  5. Step 5: Solve for x
    x = 713,985,497,891.20/1,309,984.86
  6. Step 6: Final answer
    x = 545,033.40

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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.