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Finding the Fourth Proportional to 605,305.94, 835,289.90 and 347,169.47

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Solution

The fourth proportional to 605,305.94, 835,289.90 and 347,169.47 is: 479,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,305.94 : 835,289.90 = 347,169.47 : x
  2. Step 2: Convert to fraction form
    605,305.94/835,289.90 = 347,169.47/x
  3. Step 3: Cross multiply
    605,305.94x = 835,289.90 × 347,169.47
  4. Step 4: Simplify right side
    605,305.94x = 289,987,151,879.35
  5. Step 5: Solve for x
    x = 289,987,151,879.35/605,305.94
  6. Step 6: Final answer
    x = 479,075.34

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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.