Home / 1,294,996.80-1,942,495.20-396,436.80

Finding the Fourth Proportional to 1,294,996.80, 1,942,495.20 and 396,436.80

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Solution

The fourth proportional to 1,294,996.80, 1,942,495.20 and 396,436.80 is: 594,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,996.80 : 1,942,495.20 = 396,436.80 : x
  2. Step 2: Convert to fraction form
    1,294,996.80/1,942,495.20 = 396,436.80/x
  3. Step 3: Cross multiply
    1,294,996.80x = 1,942,495.20 × 396,436.80
  4. Step 4: Simplify right side
    1,294,996.80x = 770,076,581,103.36
  5. Step 5: Solve for x
    x = 770,076,581,103.36/1,294,996.80
  6. Step 6: Final answer
    x = 594,655.20

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Double scale
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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.