Home / 778,366.26-1,074,103.74-438,812.64

Finding the Fourth Proportional to 778,366.26, 1,074,103.74 and 438,812.64

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Solution

The fourth proportional to 778,366.26, 1,074,103.74 and 438,812.64 is: 605,537.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,366.26 : 1,074,103.74 = 438,812.64 : x
  2. Step 2: Convert to fraction form
    778,366.26/1,074,103.74 = 438,812.64/x
  3. Step 3: Cross multiply
    778,366.26x = 1,074,103.74 × 438,812.64
  4. Step 4: Simplify right side
    778,366.26x = 471,330,297,783.27
  5. Step 5: Solve for x
    x = 471,330,297,783.27/778,366.26
  6. Step 6: Final answer
    x = 605,537.94

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1.5x scale

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.