Home / 1,302,821.60-1,954,138.20-404,240.40

Finding the Fourth Proportional to 1,302,821.60, 1,954,138.20 and 404,240.40

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Solution

The fourth proportional to 1,302,821.60, 1,954,138.20 and 404,240.40 is: 606,331.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,821.60 : 1,954,138.20 = 404,240.40 : x
  2. Step 2: Convert to fraction form
    1,302,821.60/1,954,138.20 = 404,240.40/x
  3. Step 3: Cross multiply
    1,302,821.60x = 1,954,138.20 × 404,240.40
  4. Step 4: Simplify right side
    1,302,821.60x = 789,941,607,623.28
  5. Step 5: Solve for x
    x = 789,941,607,623.28/1,302,821.60
  6. Step 6: Final answer
    x = 606,331.37

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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.