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Finding the Fourth Proportional to 1,297,470.73, 1,774,949.15 and 1,292,005.88

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Solution

The fourth proportional to 1,297,470.73, 1,774,949.15 and 1,292,005.88 is: 1,767,473.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,470.73 : 1,774,949.15 = 1,292,005.88 : x
  2. Step 2: Convert to fraction form
    1,297,470.73/1,774,949.15 = 1,292,005.88/x
  3. Step 3: Cross multiply
    1,297,470.73x = 1,774,949.15 × 1,292,005.88
  4. Step 4: Simplify right side
    1,297,470.73x = 2,293,244,740,191.44
  5. Step 5: Solve for x
    x = 2,293,244,740,191.44/1,297,470.73
  6. Step 6: Final answer
    x = 1,767,473.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.