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Finding the Fourth Proportional to 654,684.48, 981,130.77 and 494,628.84

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Solution

The fourth proportional to 654,684.48, 981,130.77 and 494,628.84 is: 741,266.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,684.48 : 981,130.77 = 494,628.84 : x
  2. Step 2: Convert to fraction form
    654,684.48/981,130.77 = 494,628.84/x
  3. Step 3: Cross multiply
    654,684.48x = 981,130.77 × 494,628.84
  4. Step 4: Simplify right side
    654,684.48x = 485,295,574,653.41
  5. Step 5: Solve for x
    x = 485,295,574,653.41/654,684.48
  6. Step 6: Final answer
    x = 741,266.35

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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.