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Finding the Fourth Proportional to 1,361,784, 1,879,320.24 and 758,172

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Solution

The fourth proportional to 1,361,784, 1,879,320.24 and 758,172 is: 1,046,309.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,784 : 1,879,320.24 = 758,172 : x
  2. Step 2: Convert to fraction form
    1,361,784/1,879,320.24 = 758,172/x
  3. Step 3: Cross multiply
    1,361,784x = 1,879,320.24 × 758,172
  4. Step 4: Simplify right side
    1,361,784x = 1,424,847,985,001.28
  5. Step 5: Solve for x
    x = 1,424,847,985,001.28/1,361,784
  6. Step 6: Final answer
    x = 1,046,309.83

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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.