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Finding the Fourth Proportional to 1,339,684.02, 1,848,784.86 and 727,848.90

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Solution

The fourth proportional to 1,339,684.02, 1,848,784.86 and 727,848.90 is: 1,004,442.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,684.02 : 1,848,784.86 = 727,848.90 : x
  2. Step 2: Convert to fraction form
    1,339,684.02/1,848,784.86 = 727,848.90/x
  3. Step 3: Cross multiply
    1,339,684.02x = 1,848,784.86 × 727,848.90
  4. Step 4: Simplify right side
    1,339,684.02x = 1,345,636,026,687.65
  5. Step 5: Solve for x
    x = 1,345,636,026,687.65/1,339,684.02
  6. Step 6: Final answer
    x = 1,004,442.84

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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.