Home / 1,189,981.54-1,642,009.26-699,973.30

Finding the Fourth Proportional to 1,189,981.54, 1,642,009.26 and 699,973.30

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Solution

The fourth proportional to 1,189,981.54, 1,642,009.26 and 699,973.30 is: 965,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,981.54 : 1,642,009.26 = 699,973.30 : x
  2. Step 2: Convert to fraction form
    1,189,981.54/1,642,009.26 = 699,973.30/x
  3. Step 3: Cross multiply
    1,189,981.54x = 1,642,009.26 × 699,973.30
  4. Step 4: Simplify right side
    1,189,981.54x = 1,149,362,640,352.76
  5. Step 5: Solve for x
    x = 1,149,362,640,352.76/1,189,981.54
  6. Step 6: Final answer
    x = 965,865.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.