Home / 1,200,916.91-1,657,101.66-717,379.41

Finding the Fourth Proportional to 1,200,916.91, 1,657,101.66 and 717,379.41

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Solution

The fourth proportional to 1,200,916.91, 1,657,101.66 and 717,379.41 is: 989,885.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,916.91 : 1,657,101.66 = 717,379.41 : x
  2. Step 2: Convert to fraction form
    1,200,916.91/1,657,101.66 = 717,379.41/x
  3. Step 3: Cross multiply
    1,200,916.91x = 1,657,101.66 × 717,379.41
  4. Step 4: Simplify right side
    1,200,916.91x = 1,188,770,611,160.82
  5. Step 5: Solve for x
    x = 1,188,770,611,160.82/1,200,916.91
  6. Step 6: Final answer
    x = 989,885.82

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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.