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Finding the Fourth Proportional to 379,580.79, 569,177.51 and 126,770.19

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Solution

The fourth proportional to 379,580.79, 569,177.51 and 126,770.19 is: 190,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,580.79 : 569,177.51 = 126,770.19 : x
  2. Step 2: Convert to fraction form
    379,580.79/569,177.51 = 126,770.19/x
  3. Step 3: Cross multiply
    379,580.79x = 569,177.51 × 126,770.19
  4. Step 4: Simplify right side
    379,580.79x = 72,154,740,452.58
  5. Step 5: Solve for x
    x = 72,154,740,452.58/379,580.79
  6. Step 6: Final answer
    x = 190,090.60

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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.