Home / 485,582.78-670,107.04-270,736.22

Finding the Fourth Proportional to 485,582.78, 670,107.04 and 270,736.22

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Solution

The fourth proportional to 485,582.78, 670,107.04 and 270,736.22 is: 373,617.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,582.78 : 670,107.04 = 270,736.22 : x
  2. Step 2: Convert to fraction form
    485,582.78/670,107.04 = 270,736.22/x
  3. Step 3: Cross multiply
    485,582.78x = 670,107.04 × 270,736.22
  4. Step 4: Simplify right side
    485,582.78x = 181,422,242,977.61
  5. Step 5: Solve for x
    x = 181,422,242,977.61/485,582.78
  6. Step 6: Final answer
    x = 373,617.54

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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.