Home / 1,245,621.40-1,868,892.90-404,200.60

Finding the Fourth Proportional to 1,245,621.40, 1,868,892.90 and 404,200.60

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Solution

The fourth proportional to 1,245,621.40, 1,868,892.90 and 404,200.60 is: 606,450.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,621.40 : 1,868,892.90 = 404,200.60 : x
  2. Step 2: Convert to fraction form
    1,245,621.40/1,868,892.90 = 404,200.60/x
  3. Step 3: Cross multiply
    1,245,621.40x = 1,868,892.90 × 404,200.60
  4. Step 4: Simplify right side
    1,245,621.40x = 755,407,631,515.74
  5. Step 5: Solve for x
    x = 755,407,631,515.74/1,245,621.40
  6. Step 6: Final answer
    x = 606,450.43

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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.