Home / 648,456-972,688.32-205,224

Finding the Fourth Proportional to 648,456, 972,688.32 and 205,224

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Solution

The fourth proportional to 648,456, 972,688.32 and 205,224 is: 307,837.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,456 : 972,688.32 = 205,224 : x
  2. Step 2: Convert to fraction form
    648,456/972,688.32 = 205,224/x
  3. Step 3: Cross multiply
    648,456x = 972,688.32 × 205,224
  4. Step 4: Simplify right side
    648,456x = 199,618,987,783.68
  5. Step 5: Solve for x
    x = 199,618,987,783.68/648,456
  6. Step 6: Final answer
    x = 307,837.37

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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.