Home / 1,093,087.80-1,638,854.10-418,908.60

Finding the Fourth Proportional to 1,093,087.80, 1,638,854.10 and 418,908.60

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Solution

The fourth proportional to 1,093,087.80, 1,638,854.10 and 418,908.60 is: 628,064.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,087.80 : 1,638,854.10 = 418,908.60 : x
  2. Step 2: Convert to fraction form
    1,093,087.80/1,638,854.10 = 418,908.60/x
  3. Step 3: Cross multiply
    1,093,087.80x = 1,638,854.10 × 418,908.60
  4. Step 4: Simplify right side
    1,093,087.80x = 686,530,076,635.26
  5. Step 5: Solve for x
    x = 686,530,076,635.26/1,093,087.80
  6. Step 6: Final answer
    x = 628,064.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.