Home / 648,027.20-972,186.60-381,650.60

Finding the Fourth Proportional to 648,027.20, 972,186.60 and 381,650.60

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Solution

The fourth proportional to 648,027.20, 972,186.60 and 381,650.60 is: 572,561.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,027.20 : 972,186.60 = 381,650.60 : x
  2. Step 2: Convert to fraction form
    648,027.20/972,186.60 = 381,650.60/x
  3. Step 3: Cross multiply
    648,027.20x = 972,186.60 × 381,650.60
  4. Step 4: Simplify right side
    648,027.20x = 371,035,599,201.96
  5. Step 5: Solve for x
    x = 371,035,599,201.96/648,027.20
  6. Step 6: Final answer
    x = 572,561.77

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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.