Home / 804,676.40-1,207,792.20-405,767.60

Finding the Fourth Proportional to 804,676.40, 1,207,792.20 and 405,767.60

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Solution

The fourth proportional to 804,676.40, 1,207,792.20 and 405,767.60 is: 609,043.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,676.40 : 1,207,792.20 = 405,767.60 : x
  2. Step 2: Convert to fraction form
    804,676.40/1,207,792.20 = 405,767.60/x
  3. Step 3: Cross multiply
    804,676.40x = 1,207,792.20 × 405,767.60
  4. Step 4: Simplify right side
    804,676.40x = 490,082,942,292.72
  5. Step 5: Solve for x
    x = 490,082,942,292.72/804,676.40
  6. Step 6: Final answer
    x = 609,043.51

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1.5x scale

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.