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Finding the Fourth Proportional to 618,491.20, 927,823.20 and 263,502.40

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Solution

The fourth proportional to 618,491.20, 927,823.20 and 263,502.40 is: 395,290.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,491.20 : 927,823.20 = 263,502.40 : x
  2. Step 2: Convert to fraction form
    618,491.20/927,823.20 = 263,502.40/x
  3. Step 3: Cross multiply
    618,491.20x = 927,823.20 × 263,502.40
  4. Step 4: Simplify right side
    618,491.20x = 244,483,639,975.68
  5. Step 5: Solve for x
    x = 244,483,639,975.68/618,491.20
  6. Step 6: Final answer
    x = 395,290.41

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1.5x scale

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.