Home / 1,972,678.86-2,722,297.41-1,113,421.14

Finding the Fourth Proportional to 1,972,678.86, 2,722,297.41 and 1,113,421.14

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Solution

The fourth proportional to 1,972,678.86, 2,722,297.41 and 1,113,421.14 is: 1,536,521.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,972,678.86 : 2,722,297.41 = 1,113,421.14 : x
  2. Step 2: Convert to fraction form
    1,972,678.86/2,722,297.41 = 1,113,421.14/x
  3. Step 3: Cross multiply
    1,972,678.86x = 2,722,297.41 × 1,113,421.14
  4. Step 4: Simplify right side
    1,972,678.86x = 3,031,063,485,661.25
  5. Step 5: Solve for x
    x = 3,031,063,485,661.25/1,972,678.86
  6. Step 6: Final answer
    x = 1,536,521.50

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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.