Home / 1,214,922.75-1,676,593.40-678,378.75

Finding the Fourth Proportional to 1,214,922.75, 1,676,593.40 and 678,378.75

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Solution

The fourth proportional to 1,214,922.75, 1,676,593.40 and 678,378.75 is: 936,162.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,922.75 : 1,676,593.40 = 678,378.75 : x
  2. Step 2: Convert to fraction form
    1,214,922.75/1,676,593.40 = 678,378.75/x
  3. Step 3: Cross multiply
    1,214,922.75x = 1,676,593.40 × 678,378.75
  4. Step 4: Simplify right side
    1,214,922.75x = 1,137,365,331,558.36
  5. Step 5: Solve for x
    x = 1,137,365,331,558.36/1,214,922.75
  6. Step 6: Final answer
    x = 936,162.68

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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.