Home / 840,512.70-1,260,003.60-307,905.30

Finding the Fourth Proportional to 840,512.70, 1,260,003.60 and 307,905.30

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Solution

The fourth proportional to 840,512.70, 1,260,003.60 and 307,905.30 is: 461,577.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,512.70 : 1,260,003.60 = 307,905.30 : x
  2. Step 2: Convert to fraction form
    840,512.70/1,260,003.60 = 307,905.30/x
  3. Step 3: Cross multiply
    840,512.70x = 1,260,003.60 × 307,905.30
  4. Step 4: Simplify right side
    840,512.70x = 387,961,786,459.08
  5. Step 5: Solve for x
    x = 387,961,786,459.08/840,512.70
  6. Step 6: Final answer
    x = 461,577.54

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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.