Home / 1,219,590.25-1,683,619.59-857,324.65

Finding the Fourth Proportional to 1,219,590.25, 1,683,619.59 and 857,324.65

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Solution

The fourth proportional to 1,219,590.25, 1,683,619.59 and 857,324.65 is: 1,183,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,590.25 : 1,683,619.59 = 857,324.65 : x
  2. Step 2: Convert to fraction form
    1,219,590.25/1,683,619.59 = 857,324.65/x
  3. Step 3: Cross multiply
    1,219,590.25x = 1,683,619.59 × 857,324.65
  4. Step 4: Simplify right side
    1,219,590.25x = 1,443,408,575,729.89
  5. Step 5: Solve for x
    x = 1,443,408,575,729.89/1,219,590.25
  6. Step 6: Final answer
    x = 1,183,519.28

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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.