Home / 818,043.60-1,227,103.80-257,096.40

Finding the Fourth Proportional to 818,043.60, 1,227,103.80 and 257,096.40

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Solution

The fourth proportional to 818,043.60, 1,227,103.80 and 257,096.40 is: 385,656.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,043.60 : 1,227,103.80 = 257,096.40 : x
  2. Step 2: Convert to fraction form
    818,043.60/1,227,103.80 = 257,096.40/x
  3. Step 3: Cross multiply
    818,043.60x = 1,227,103.80 × 257,096.40
  4. Step 4: Simplify right side
    818,043.60x = 315,483,969,406.32
  5. Step 5: Solve for x
    x = 315,483,969,406.32/818,043.60
  6. Step 6: Final answer
    x = 385,656.67

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Similar ratio
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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.