Home / 1,206,009.74-1,809,012.62-939,969.74

Finding the Fourth Proportional to 1,206,009.74, 1,809,012.62 and 939,969.74

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Solution

The fourth proportional to 1,206,009.74, 1,809,012.62 and 939,969.74 is: 1,409,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,009.74 : 1,809,012.62 = 939,969.74 : x
  2. Step 2: Convert to fraction form
    1,206,009.74/1,809,012.62 = 939,969.74/x
  3. Step 3: Cross multiply
    1,206,009.74x = 1,809,012.62 × 939,969.74
  4. Step 4: Simplify right side
    1,206,009.74x = 1,700,417,122,078.12
  5. Step 5: Solve for x
    x = 1,700,417,122,078.12/1,206,009.74
  6. Step 6: Final answer
    x = 1,409,953.06

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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.