Home / 1,987,548.32-2,742,884.16-1,116,536.72

Finding the Fourth Proportional to 1,987,548.32, 2,742,884.16 and 1,116,536.72

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Solution

The fourth proportional to 1,987,548.32, 2,742,884.16 and 1,116,536.72 is: 1,540,858.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,548.32 : 2,742,884.16 = 1,116,536.72 : x
  2. Step 2: Convert to fraction form
    1,987,548.32/2,742,884.16 = 1,116,536.72/x
  3. Step 3: Cross multiply
    1,987,548.32x = 2,742,884.16 × 1,116,536.72
  4. Step 4: Simplify right side
    1,987,548.32x = 3,062,530,883,346.36
  5. Step 5: Solve for x
    x = 3,062,530,883,346.36/1,987,548.32
  6. Step 6: Final answer
    x = 1,540,858.58

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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.