Home / 1,123,975.60-1,685,174.88-413,912.64

Finding the Fourth Proportional to 1,123,975.60, 1,685,174.88 and 413,912.64

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Solution

The fourth proportional to 1,123,975.60, 1,685,174.88 and 413,912.64 is: 620,578.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,975.60 : 1,685,174.88 = 413,912.64 : x
  2. Step 2: Convert to fraction form
    1,123,975.60/1,685,174.88 = 413,912.64/x
  3. Step 3: Cross multiply
    1,123,975.60x = 1,685,174.88 × 413,912.64
  4. Step 4: Simplify right side
    1,123,975.60x = 697,515,183,442.48
  5. Step 5: Solve for x
    x = 697,515,183,442.48/1,123,975.60
  6. Step 6: Final answer
    x = 620,578.58

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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.