Home / 1,987,026.15-2,742,146.45-1,115,930.39

Finding the Fourth Proportional to 1,987,026.15, 2,742,146.45 and 1,115,930.39

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Solution

The fourth proportional to 1,987,026.15, 2,742,146.45 and 1,115,930.39 is: 1,540,012.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,026.15 : 2,742,146.45 = 1,115,930.39 : x
  2. Step 2: Convert to fraction form
    1,987,026.15/2,742,146.45 = 1,115,930.39/x
  3. Step 3: Cross multiply
    1,987,026.15x = 2,742,146.45 × 1,115,930.39
  4. Step 4: Simplify right side
    1,987,026.15x = 3,060,044,538,095.23
  5. Step 5: Solve for x
    x = 3,060,044,538,095.23/1,987,026.15
  6. Step 6: Final answer
    x = 1,540,012.21

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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.