Home / 1,098,742.42-1,640,634.55-969,580.94

Finding the Fourth Proportional to 1,098,742.42, 1,640,634.55 and 969,580.94

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Solution

The fourth proportional to 1,098,742.42, 1,640,634.55 and 969,580.94 is: 1,447,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,742.42 : 1,640,634.55 = 969,580.94 : x
  2. Step 2: Convert to fraction form
    1,098,742.42/1,640,634.55 = 969,580.94/x
  3. Step 3: Cross multiply
    1,098,742.42x = 1,640,634.55 × 969,580.94
  4. Step 4: Simplify right side
    1,098,742.42x = 1,590,727,978,558.35
  5. Step 5: Solve for x
    x = 1,590,727,978,558.35/1,098,742.42
  6. Step 6: Final answer
    x = 1,447,771.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.