Home / 1,123,401.60-1,685,109.60-449,539.20

Finding the Fourth Proportional to 1,123,401.60, 1,685,109.60 and 449,539.20

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Solution

The fourth proportional to 1,123,401.60, 1,685,109.60 and 449,539.20 is: 674,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,401.60 : 1,685,109.60 = 449,539.20 : x
  2. Step 2: Convert to fraction form
    1,123,401.60/1,685,109.60 = 449,539.20/x
  3. Step 3: Cross multiply
    1,123,401.60x = 1,685,109.60 × 449,539.20
  4. Step 4: Simplify right side
    1,123,401.60x = 757,522,821,496.32
  5. Step 5: Solve for x
    x = 757,522,821,496.32/1,123,401.60
  6. Step 6: Final answer
    x = 674,311.68

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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.