Home / 490,718.89-677,188.24-272,929.56

Finding the Fourth Proportional to 490,718.89, 677,188.24 and 272,929.56

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Solution

The fourth proportional to 490,718.89, 677,188.24 and 272,929.56 is: 376,640.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,718.89 : 677,188.24 = 272,929.56 : x
  2. Step 2: Convert to fraction form
    490,718.89/677,188.24 = 272,929.56/x
  3. Step 3: Cross multiply
    490,718.89x = 677,188.24 × 272,929.56
  4. Step 4: Simplify right side
    490,718.89x = 184,824,688,380.37
  5. Step 5: Solve for x
    x = 184,824,688,380.37/490,718.89
  6. Step 6: Final answer
    x = 376,640.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.