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Finding the Fourth Proportional to 455,243.90, 682,865.85 and 366,670.40

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Solution

The fourth proportional to 455,243.90, 682,865.85 and 366,670.40 is: 550,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,243.90 : 682,865.85 = 366,670.40 : x
  2. Step 2: Convert to fraction form
    455,243.90/682,865.85 = 366,670.40/x
  3. Step 3: Cross multiply
    455,243.90x = 682,865.85 × 366,670.40
  4. Step 4: Simplify right side
    455,243.90x = 250,386,694,365.84
  5. Step 5: Solve for x
    x = 250,386,694,365.84/455,243.90
  6. Step 6: Final answer
    x = 550,005.60

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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.