Home / 1,226,643.72-1,692,730.64-682,765.54

Finding the Fourth Proportional to 1,226,643.72, 1,692,730.64 and 682,765.54

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Solution

The fourth proportional to 1,226,643.72, 1,692,730.64 and 682,765.54 is: 942,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,643.72 : 1,692,730.64 = 682,765.54 : x
  2. Step 2: Convert to fraction form
    1,226,643.72/1,692,730.64 = 682,765.54/x
  3. Step 3: Cross multiply
    1,226,643.72x = 1,692,730.64 × 682,765.54
  4. Step 4: Simplify right side
    1,226,643.72x = 1,155,738,146,969.23
  5. Step 5: Solve for x
    x = 1,155,738,146,969.23/1,226,643.72
  6. Step 6: Final answer
    x = 942,195.47

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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.