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Finding the Fourth Proportional to 654,686.48, 981,133.77 and 494,630.84

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Solution

The fourth proportional to 654,686.48, 981,133.77 and 494,630.84 is: 741,269.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,686.48 : 981,133.77 = 494,630.84 : x
  2. Step 2: Convert to fraction form
    654,686.48/981,133.77 = 494,630.84/x
  3. Step 3: Cross multiply
    654,686.48x = 981,133.77 × 494,630.84
  4. Step 4: Simplify right side
    654,686.48x = 485,299,020,807.47
  5. Step 5: Solve for x
    x = 485,299,020,807.47/654,686.48
  6. Step 6: Final answer
    x = 741,269.35

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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.