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Finding the Fourth Proportional to 421,092.01, 580,705.35 and 275,680.81

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Solution

The fourth proportional to 421,092.01, 580,705.35 and 275,680.81 is: 380,176.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,092.01 : 580,705.35 = 275,680.81 : x
  2. Step 2: Convert to fraction form
    421,092.01/580,705.35 = 275,680.81/x
  3. Step 3: Cross multiply
    421,092.01x = 580,705.35 × 275,680.81
  4. Step 4: Simplify right side
    421,092.01x = 160,089,321,259.33
  5. Step 5: Solve for x
    x = 160,089,321,259.33/421,092.01
  6. Step 6: Final answer
    x = 380,176.58

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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.