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Finding the Fourth Proportional to 618,026.28, 926,806.08 and 285,369

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Solution

The fourth proportional to 618,026.28, 926,806.08 and 285,369 is: 427,945.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,026.28 : 926,806.08 = 285,369 : x
  2. Step 2: Convert to fraction form
    618,026.28/926,806.08 = 285,369/x
  3. Step 3: Cross multiply
    618,026.28x = 926,806.08 × 285,369
  4. Step 4: Simplify right side
    618,026.28x = 264,481,724,243.52
  5. Step 5: Solve for x
    x = 264,481,724,243.52/618,026.28
  6. Step 6: Final answer
    x = 427,945.76

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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.