Home / 1,123,912.20-1,685,285.10-413,574.60

Finding the Fourth Proportional to 1,123,912.20, 1,685,285.10 and 413,574.60

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Solution

The fourth proportional to 1,123,912.20, 1,685,285.10 and 413,574.60 is: 620,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,912.20 : 1,685,285.10 = 413,574.60 : x
  2. Step 2: Convert to fraction form
    1,123,912.20/1,685,285.10 = 413,574.60/x
  3. Step 3: Cross multiply
    1,123,912.20x = 1,685,285.10 × 413,574.60
  4. Step 4: Simplify right side
    1,123,912.20x = 696,991,111,118.46
  5. Step 5: Solve for x
    x = 696,991,111,118.46/1,123,912.20
  6. Step 6: Final answer
    x = 620,147.30

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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.