Home / 1,555,582.74-2,145,067.31-1,228,352.86

Finding the Fourth Proportional to 1,555,582.74, 2,145,067.31 and 1,228,352.86

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Solution

The fourth proportional to 1,555,582.74, 2,145,067.31 and 1,228,352.86 is: 1,693,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,582.74 : 2,145,067.31 = 1,228,352.86 : x
  2. Step 2: Convert to fraction form
    1,555,582.74/2,145,067.31 = 1,228,352.86/x
  3. Step 3: Cross multiply
    1,555,582.74x = 2,145,067.31 × 1,228,352.86
  4. Step 4: Simplify right side
    1,555,582.74x = 2,634,899,565,131.01
  5. Step 5: Solve for x
    x = 2,634,899,565,131.01/1,555,582.74
  6. Step 6: Final answer
    x = 1,693,834.41

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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.