Home / 1,230,851.90-1,698,661.21-687,093.83

Finding the Fourth Proportional to 1,230,851.90, 1,698,661.21 and 687,093.83

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Solution

The fourth proportional to 1,230,851.90, 1,698,661.21 and 687,093.83 is: 948,237.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,851.90 : 1,698,661.21 = 687,093.83 : x
  2. Step 2: Convert to fraction form
    1,230,851.90/1,698,661.21 = 687,093.83/x
  3. Step 3: Cross multiply
    1,230,851.90x = 1,698,661.21 × 687,093.83
  4. Step 4: Simplify right side
    1,230,851.90x = 1,167,139,636,651.33
  5. Step 5: Solve for x
    x = 1,167,139,636,651.33/1,230,851.90
  6. Step 6: Final answer
    x = 948,237.27

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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.