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Finding the Fourth Proportional to 618,179.70, 927,269.55 and 557,162.40

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Solution

The fourth proportional to 618,179.70, 927,269.55 and 557,162.40 is: 835,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,179.70 : 927,269.55 = 557,162.40 : x
  2. Step 2: Convert to fraction form
    618,179.70/927,269.55 = 557,162.40/x
  3. Step 3: Cross multiply
    618,179.70x = 927,269.55 × 557,162.40
  4. Step 4: Simplify right side
    618,179.70x = 516,639,727,924.92
  5. Step 5: Solve for x
    x = 516,639,727,924.92/618,179.70
  6. Step 6: Final answer
    x = 835,743.60

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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.