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Finding the Fourth Proportional to 1,270,077, 1,752,728.88 and 697,170.48

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Solution

The fourth proportional to 1,270,077, 1,752,728.88 and 697,170.48 is: 962,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,077 : 1,752,728.88 = 697,170.48 : x
  2. Step 2: Convert to fraction form
    1,270,077/1,752,728.88 = 697,170.48/x
  3. Step 3: Cross multiply
    1,270,077x = 1,752,728.88 × 697,170.48
  4. Step 4: Simplify right side
    1,270,077x = 1,221,950,834,579.46
  5. Step 5: Solve for x
    x = 1,221,950,834,579.46/1,270,077
  6. Step 6: Final answer
    x = 962,107.68

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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.