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Finding the Fourth Proportional to 605,074.74, 907,603.80 and 205,993.82

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Solution

The fourth proportional to 605,074.74, 907,603.80 and 205,993.82 is: 308,987.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,074.74 : 907,603.80 = 205,993.82 : x
  2. Step 2: Convert to fraction form
    605,074.74/907,603.80 = 205,993.82/x
  3. Step 3: Cross multiply
    605,074.74x = 907,603.80 × 205,993.82
  4. Step 4: Simplify right side
    605,074.74x = 186,960,769,270.50
  5. Step 5: Solve for x
    x = 186,960,769,270.50/605,074.74
  6. Step 6: Final answer
    x = 308,987.89

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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.