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Finding the Fourth Proportional to 618,006.94, 926,649.50 and 262,838.14

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Solution

The fourth proportional to 618,006.94, 926,649.50 and 262,838.14 is: 394,103.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,006.94 : 926,649.50 = 262,838.14 : x
  2. Step 2: Convert to fraction form
    618,006.94/926,649.50 = 262,838.14/x
  3. Step 3: Cross multiply
    618,006.94x = 926,649.50 × 262,838.14
  4. Step 4: Simplify right side
    618,006.94x = 243,558,831,011.93
  5. Step 5: Solve for x
    x = 243,558,831,011.93/618,006.94
  6. Step 6: Final answer
    x = 394,103.72

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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.