Home / 1,989,665.76-2,742,958.43-1,682,509.82

Finding the Fourth Proportional to 1,989,665.76, 2,742,958.43 and 1,682,509.82

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Solution

The fourth proportional to 1,989,665.76, 2,742,958.43 and 1,682,509.82 is: 2,319,512.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,665.76 : 2,742,958.43 = 1,682,509.82 : x
  2. Step 2: Convert to fraction form
    1,989,665.76/2,742,958.43 = 1,682,509.82/x
  3. Step 3: Cross multiply
    1,989,665.76x = 2,742,958.43 × 1,682,509.82
  4. Step 4: Simplify right side
    1,989,665.76x = 4,615,054,472,199.44
  5. Step 5: Solve for x
    x = 4,615,054,472,199.44/1,989,665.76
  6. Step 6: Final answer
    x = 2,319,512.44

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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.