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Finding the Fourth Proportional to 654,578.85, 981,858.40 and 294,495.40

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Solution

The fourth proportional to 654,578.85, 981,858.40 and 294,495.40 is: 441,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,578.85 : 981,858.40 = 294,495.40 : x
  2. Step 2: Convert to fraction form
    654,578.85/981,858.40 = 294,495.40/x
  3. Step 3: Cross multiply
    654,578.85x = 981,858.40 × 294,495.40
  4. Step 4: Simplify right side
    654,578.85x = 289,152,782,251.36
  5. Step 5: Solve for x
    x = 289,152,782,251.36/654,578.85
  6. Step 6: Final answer
    x = 441,738.66

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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.