Home / 905,037.66-1,358,128.35-505,940.54

Finding the Fourth Proportional to 905,037.66, 1,358,128.35 and 505,940.54

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Solution

The fourth proportional to 905,037.66, 1,358,128.35 and 505,940.54 is: 759,230.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,037.66 : 1,358,128.35 = 505,940.54 : x
  2. Step 2: Convert to fraction form
    905,037.66/1,358,128.35 = 505,940.54/x
  3. Step 3: Cross multiply
    905,037.66x = 1,358,128.35 × 505,940.54
  4. Step 4: Simplify right side
    905,037.66x = 687,132,183,997.67
  5. Step 5: Solve for x
    x = 687,132,183,997.67/905,037.66
  6. Step 6: Final answer
    x = 759,230.49

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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.