Home / 1,682,564.86-2,321,927.49-918,618.40

Finding the Fourth Proportional to 1,682,564.86, 2,321,927.49 and 918,618.40

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Solution

The fourth proportional to 1,682,564.86, 2,321,927.49 and 918,618.40 is: 1,267,686.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,682,564.86 : 2,321,927.49 = 918,618.40 : x
  2. Step 2: Convert to fraction form
    1,682,564.86/2,321,927.49 = 918,618.40/x
  3. Step 3: Cross multiply
    1,682,564.86x = 2,321,927.49 × 918,618.40
  4. Step 4: Simplify right side
    1,682,564.86x = 2,132,965,315,779.82
  5. Step 5: Solve for x
    x = 2,132,965,315,779.82/1,682,564.86
  6. Step 6: Final answer
    x = 1,267,686.83

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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.