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Finding the Fourth Proportional to 618,259.94, 926,182.46 and 426,100.34

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Solution

The fourth proportional to 618,259.94, 926,182.46 and 426,100.34 is: 638,318.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,259.94 : 926,182.46 = 426,100.34 : x
  2. Step 2: Convert to fraction form
    618,259.94/926,182.46 = 426,100.34/x
  3. Step 3: Cross multiply
    618,259.94x = 926,182.46 × 426,100.34
  4. Step 4: Simplify right side
    618,259.94x = 394,646,654,346.62
  5. Step 5: Solve for x
    x = 394,646,654,346.62/618,259.94
  6. Step 6: Final answer
    x = 638,318.34

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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.