Home / 1,987,076.10-2,742,178.14-1,127,650.71

Finding the Fourth Proportional to 1,987,076.10, 2,742,178.14 and 1,127,650.71

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Solution

The fourth proportional to 1,987,076.10, 2,742,178.14 and 1,127,650.71 is: 1,556,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,076.10 : 2,742,178.14 = 1,127,650.71 : x
  2. Step 2: Convert to fraction form
    1,987,076.10/2,742,178.14 = 1,127,650.71/x
  3. Step 3: Cross multiply
    1,987,076.10x = 2,742,178.14 × 1,127,650.71
  4. Step 4: Simplify right side
    1,987,076.10x = 3,092,219,126,517.48
  5. Step 5: Solve for x
    x = 3,092,219,126,517.48/1,987,076.10
  6. Step 6: Final answer
    x = 1,556,165.43

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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.