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Finding the Fourth Proportional to 618,493.92, 927,093.48 and 258,870.93

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Solution

The fourth proportional to 618,493.92, 927,093.48 and 258,870.93 is: 388,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,493.92 : 927,093.48 = 258,870.93 : x
  2. Step 2: Convert to fraction form
    618,493.92/927,093.48 = 258,870.93/x
  3. Step 3: Cross multiply
    618,493.92x = 927,093.48 × 258,870.93
  4. Step 4: Simplify right side
    618,493.92x = 239,997,551,364.54
  5. Step 5: Solve for x
    x = 239,997,551,364.54/618,493.92
  6. Step 6: Final answer
    x = 388,035.43

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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.