Home / 1,298,100.80-1,946,805.60-399,540.80

Finding the Fourth Proportional to 1,298,100.80, 1,946,805.60 and 399,540.80

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Solution

The fourth proportional to 1,298,100.80, 1,946,805.60 and 399,540.80 is: 599,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,100.80 : 1,946,805.60 = 399,540.80 : x
  2. Step 2: Convert to fraction form
    1,298,100.80/1,946,805.60 = 399,540.80/x
  3. Step 3: Cross multiply
    1,298,100.80x = 1,946,805.60 × 399,540.80
  4. Step 4: Simplify right side
    1,298,100.80x = 777,828,266,868.48
  5. Step 5: Solve for x
    x = 777,828,266,868.48/1,298,100.80
  6. Step 6: Final answer
    x = 599,204.83

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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.