Home / 1,086,021.70-1,628,378.07-486,874.50

Finding the Fourth Proportional to 1,086,021.70, 1,628,378.07 and 486,874.50

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Solution

The fourth proportional to 1,086,021.70, 1,628,378.07 and 486,874.50 is: 730,018.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,021.70 : 1,628,378.07 = 486,874.50 : x
  2. Step 2: Convert to fraction form
    1,086,021.70/1,628,378.07 = 486,874.50/x
  3. Step 3: Cross multiply
    1,086,021.70x = 1,628,378.07 × 486,874.50
  4. Step 4: Simplify right side
    1,086,021.70x = 792,815,758,642.22
  5. Step 5: Solve for x
    x = 792,815,758,642.22/1,086,021.70
  6. Step 6: Final answer
    x = 730,018.34

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Double scale
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1.5x scale

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.