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Finding the Fourth Proportional to 909,879.94, 1,365,029.95 and 270,169.45

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Solution

The fourth proportional to 909,879.94, 1,365,029.95 and 270,169.45 is: 405,316.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,879.94 : 1,365,029.95 = 270,169.45 : x
  2. Step 2: Convert to fraction form
    909,879.94/1,365,029.95 = 270,169.45/x
  3. Step 3: Cross multiply
    909,879.94x = 1,365,029.95 × 270,169.45
  4. Step 4: Simplify right side
    909,879.94x = 368,789,390,322.89
  5. Step 5: Solve for x
    x = 368,789,390,322.89/909,879.94
  6. Step 6: Final answer
    x = 405,316.54

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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.