Home / 2,116,489.45-2,920,777.43-1,149,638.65

Finding the Fourth Proportional to 2,116,489.45, 2,920,777.43 and 1,149,638.65

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Solution

The fourth proportional to 2,116,489.45, 2,920,777.43 and 1,149,638.65 is: 1,586,513.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,116,489.45 : 2,920,777.43 = 1,149,638.65 : x
  2. Step 2: Convert to fraction form
    2,116,489.45/2,920,777.43 = 1,149,638.65/x
  3. Step 3: Cross multiply
    2,116,489.45x = 2,920,777.43 × 1,149,638.65
  4. Step 4: Simplify right side
    2,116,489.45x = 3,357,838,609,845.88
  5. Step 5: Solve for x
    x = 3,357,838,609,845.88/2,116,489.45
  6. Step 6: Final answer
    x = 1,586,513.28

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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.