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Finding the Fourth Proportional to 380,587.75, 570,810.17 and 190,997.26

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Solution

The fourth proportional to 380,587.75, 570,810.17 and 190,997.26 is: 286,460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,587.75 : 570,810.17 = 190,997.26 : x
  2. Step 2: Convert to fraction form
    380,587.75/570,810.17 = 190,997.26/x
  3. Step 3: Cross multiply
    380,587.75x = 570,810.17 × 190,997.26
  4. Step 4: Simplify right side
    380,587.75x = 109,023,177,500.60
  5. Step 5: Solve for x
    x = 109,023,177,500.60/380,587.75
  6. Step 6: Final answer
    x = 286,460.03

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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.