Home / 816,038.40-1,222,599.60-394,384.80

Finding the Fourth Proportional to 816,038.40, 1,222,599.60 and 394,384.80

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Solution

The fourth proportional to 816,038.40, 1,222,599.60 and 394,384.80 is: 590,872.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,038.40 : 1,222,599.60 = 394,384.80 : x
  2. Step 2: Convert to fraction form
    816,038.40/1,222,599.60 = 394,384.80/x
  3. Step 3: Cross multiply
    816,038.40x = 1,222,599.60 × 394,384.80
  4. Step 4: Simplify right side
    816,038.40x = 482,174,698,726.08
  5. Step 5: Solve for x
    x = 482,174,698,726.08/816,038.40
  6. Step 6: Final answer
    x = 590,872.56

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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.