Home / 1,188,408.88-1,778,086.14-1,045,116.64

Finding the Fourth Proportional to 1,188,408.88, 1,778,086.14 and 1,045,116.64

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Solution

The fourth proportional to 1,188,408.88, 1,778,086.14 and 1,045,116.64 is: 1,563,693.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,408.88 : 1,778,086.14 = 1,045,116.64 : x
  2. Step 2: Convert to fraction form
    1,188,408.88/1,778,086.14 = 1,045,116.64/x
  3. Step 3: Cross multiply
    1,188,408.88x = 1,778,086.14 × 1,045,116.64
  4. Step 4: Simplify right side
    1,188,408.88x = 1,858,307,412,267.37
  5. Step 5: Solve for x
    x = 1,858,307,412,267.37/1,188,408.88
  6. Step 6: Final answer
    x = 1,563,693.64

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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.