Home / 786,556.77-1,085,531.58-480,812.12

Finding the Fourth Proportional to 786,556.77, 1,085,531.58 and 480,812.12

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Solution

The fourth proportional to 786,556.77, 1,085,531.58 and 480,812.12 is: 663,571.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,556.77 : 1,085,531.58 = 480,812.12 : x
  2. Step 2: Convert to fraction form
    786,556.77/1,085,531.58 = 480,812.12/x
  3. Step 3: Cross multiply
    786,556.77x = 1,085,531.58 × 480,812.12
  4. Step 4: Simplify right side
    786,556.77x = 521,936,734,879.09
  5. Step 5: Solve for x
    x = 521,936,734,879.09/786,556.77
  6. Step 6: Final answer
    x = 663,571.60

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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.