Home / 1,216,779.41-1,678,648.21-700,409.75

Finding the Fourth Proportional to 1,216,779.41, 1,678,648.21 and 700,409.75

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Solution

The fourth proportional to 1,216,779.41, 1,678,648.21 and 700,409.75 is: 966,273.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,779.41 : 1,678,648.21 = 700,409.75 : x
  2. Step 2: Convert to fraction form
    1,216,779.41/1,678,648.21 = 700,409.75/x
  3. Step 3: Cross multiply
    1,216,779.41x = 1,678,648.21 × 700,409.75
  4. Step 4: Simplify right side
    1,216,779.41x = 1,175,741,562,959.78
  5. Step 5: Solve for x
    x = 1,175,741,562,959.78/1,216,779.41
  6. Step 6: Final answer
    x = 966,273.39

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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.