Home / 548,845.20-757,150.20-355,315.14

Finding the Fourth Proportional to 548,845.20, 757,150.20 and 355,315.14

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Solution

The fourth proportional to 548,845.20, 757,150.20 and 355,315.14 is: 490,169.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,845.20 : 757,150.20 = 355,315.14 : x
  2. Step 2: Convert to fraction form
    548,845.20/757,150.20 = 355,315.14/x
  3. Step 3: Cross multiply
    548,845.20x = 757,150.20 × 355,315.14
  4. Step 4: Simplify right side
    548,845.20x = 269,026,929,314.03
  5. Step 5: Solve for x
    x = 269,026,929,314.03/548,845.20
  6. Step 6: Final answer
    x = 490,169.05

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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.