Home / 1,229,369.82-1,696,551.27-678,148.80

Finding the Fourth Proportional to 1,229,369.82, 1,696,551.27 and 678,148.80

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Solution

The fourth proportional to 1,229,369.82, 1,696,551.27 and 678,148.80 is: 935,856.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,369.82 : 1,696,551.27 = 678,148.80 : x
  2. Step 2: Convert to fraction form
    1,229,369.82/1,696,551.27 = 678,148.80/x
  3. Step 3: Cross multiply
    1,229,369.82x = 1,696,551.27 × 678,148.80
  4. Step 4: Simplify right side
    1,229,369.82x = 1,150,514,207,888.98
  5. Step 5: Solve for x
    x = 1,150,514,207,888.98/1,229,369.82
  6. Step 6: Final answer
    x = 935,856.88

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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.