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Finding the Fourth Proportional to 451,953.78, 677,673.74 and 349,334.80

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Solution

The fourth proportional to 451,953.78, 677,673.74 and 349,334.80 is: 523,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,953.78 : 677,673.74 = 349,334.80 : x
  2. Step 2: Convert to fraction form
    451,953.78/677,673.74 = 349,334.80/x
  3. Step 3: Cross multiply
    451,953.78x = 677,673.74 × 349,334.80
  4. Step 4: Simplify right side
    451,953.78x = 236,735,020,428.15
  5. Step 5: Solve for x
    x = 236,735,020,428.15/451,953.78
  6. Step 6: Final answer
    x = 523,803.61

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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.