Home / 1,298,192.97-1,947,473.73-399,709.38

Finding the Fourth Proportional to 1,298,192.97, 1,947,473.73 and 399,709.38

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Solution

The fourth proportional to 1,298,192.97, 1,947,473.73 and 399,709.38 is: 599,620.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,192.97 : 1,947,473.73 = 399,709.38 : x
  2. Step 2: Convert to fraction form
    1,298,192.97/1,947,473.73 = 399,709.38/x
  3. Step 3: Cross multiply
    1,298,192.97x = 1,947,473.73 × 399,709.38
  4. Step 4: Simplify right side
    1,298,192.97x = 778,423,517,184.59
  5. Step 5: Solve for x
    x = 778,423,517,184.59/1,298,192.97
  6. Step 6: Final answer
    x = 599,620.81

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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.