Home / 1,298,115.80-1,946,828.10-399,555.80

Finding the Fourth Proportional to 1,298,115.80, 1,946,828.10 and 399,555.80

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Solution

The fourth proportional to 1,298,115.80, 1,946,828.10 and 399,555.80 is: 599,227.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,115.80 : 1,946,828.10 = 399,555.80 : x
  2. Step 2: Convert to fraction form
    1,298,115.80/1,946,828.10 = 399,555.80/x
  3. Step 3: Cross multiply
    1,298,115.80x = 1,946,828.10 × 399,555.80
  4. Step 4: Simplify right side
    1,298,115.80x = 777,866,458,957.98
  5. Step 5: Solve for x
    x = 777,866,458,957.98/1,298,115.80
  6. Step 6: Final answer
    x = 599,227.33

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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.