Home / 1,298,098.80-1,946,802.60-399,538.80

Finding the Fourth Proportional to 1,298,098.80, 1,946,802.60 and 399,538.80

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Solution

The fourth proportional to 1,298,098.80, 1,946,802.60 and 399,538.80 is: 599,201.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,098.80 : 1,946,802.60 = 399,538.80 : x
  2. Step 2: Convert to fraction form
    1,298,098.80/1,946,802.60 = 399,538.80/x
  3. Step 3: Cross multiply
    1,298,098.80x = 1,946,802.60 × 399,538.80
  4. Step 4: Simplify right side
    1,298,098.80x = 777,823,174,640.88
  5. Step 5: Solve for x
    x = 777,823,174,640.88/1,298,098.80
  6. Step 6: Final answer
    x = 599,201.83

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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.