Home / 1,987,548.79-2,742,884.83-1,116,537.31

Finding the Fourth Proportional to 1,987,548.79, 2,742,884.83 and 1,116,537.31

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Solution

The fourth proportional to 1,987,548.79, 2,742,884.83 and 1,116,537.31 is: 1,540,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,548.79 : 2,742,884.83 = 1,116,537.31 : x
  2. Step 2: Convert to fraction form
    1,987,548.79/2,742,884.83 = 1,116,537.31/x
  3. Step 3: Cross multiply
    1,987,548.79x = 2,742,884.83 × 1,116,537.31
  4. Step 4: Simplify right side
    1,987,548.79x = 3,062,533,248,271.76
  5. Step 5: Solve for x
    x = 3,062,533,248,271.76/1,987,548.79
  6. Step 6: Final answer
    x = 1,540,859.41

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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.