Home / 1,379,268.42-2,066,212.61-778,412.04

Finding the Fourth Proportional to 1,379,268.42, 2,066,212.61 and 778,412.04

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Solution

The fourth proportional to 1,379,268.42, 2,066,212.61 and 778,412.04 is: 1,166,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,268.42 : 2,066,212.61 = 778,412.04 : x
  2. Step 2: Convert to fraction form
    1,379,268.42/2,066,212.61 = 778,412.04/x
  3. Step 3: Cross multiply
    1,379,268.42x = 2,066,212.61 × 778,412.04
  4. Step 4: Simplify right side
    1,379,268.42x = 1,608,364,768,931.76
  5. Step 5: Solve for x
    x = 1,608,364,768,931.76/1,379,268.42
  6. Step 6: Final answer
    x = 1,166,099.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.