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Finding the Fourth Proportional to 392,777.68, 542,056.43 and 295,810.51

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Solution

The fourth proportional to 392,777.68, 542,056.43 and 295,810.51 is: 408,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,777.68 : 542,056.43 = 295,810.51 : x
  2. Step 2: Convert to fraction form
    392,777.68/542,056.43 = 295,810.51/x
  3. Step 3: Cross multiply
    392,777.68x = 542,056.43 × 295,810.51
  4. Step 4: Simplify right side
    392,777.68x = 160,345,989,007.08
  5. Step 5: Solve for x
    x = 160,345,989,007.08/392,777.68
  6. Step 6: Final answer
    x = 408,236.00

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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.