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Finding the Fourth Proportional to 605,365.77, 908,048.67 and 285,443.19

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Solution

The fourth proportional to 605,365.77, 908,048.67 and 285,443.19 is: 428,164.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,365.77 : 908,048.67 = 285,443.19 : x
  2. Step 2: Convert to fraction form
    605,365.77/908,048.67 = 285,443.19/x
  3. Step 3: Cross multiply
    605,365.77x = 908,048.67 × 285,443.19
  4. Step 4: Simplify right side
    605,365.77x = 259,196,309,040.06
  5. Step 5: Solve for x
    x = 259,196,309,040.06/605,365.77
  6. Step 6: Final answer
    x = 428,164.79

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Similar ratio
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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.