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Finding the Fourth Proportional to 494,403.95, 682,258.51 and 279,548.51

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Solution

The fourth proportional to 494,403.95, 682,258.51 and 279,548.51 is: 385,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,403.95 : 682,258.51 = 279,548.51 : x
  2. Step 2: Convert to fraction form
    494,403.95/682,258.51 = 279,548.51/x
  3. Step 3: Cross multiply
    494,403.95x = 682,258.51 × 279,548.51
  4. Step 4: Simplify right side
    494,403.95x = 190,724,349,905.32
  5. Step 5: Solve for x
    x = 190,724,349,905.32/494,403.95
  6. Step 6: Final answer
    x = 385,766.23

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1.5x scale

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.