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Finding the Fourth Proportional to 1,269,904.52, 1,752,412.02 and 696,945.80

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Solution

The fourth proportional to 1,269,904.52, 1,752,412.02 and 696,945.80 is: 961,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,904.52 : 1,752,412.02 = 696,945.80 : x
  2. Step 2: Convert to fraction form
    1,269,904.52/1,752,412.02 = 696,945.80/x
  3. Step 3: Cross multiply
    1,269,904.52x = 1,752,412.02 × 696,945.80
  4. Step 4: Simplify right side
    1,269,904.52x = 1,221,336,197,208.52
  5. Step 5: Solve for x
    x = 1,221,336,197,208.52/1,269,904.52
  6. Step 6: Final answer
    x = 961,754.35

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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.