Home / 1,857,906.81-2,786,191.44-643,153.46

Finding the Fourth Proportional to 1,857,906.81, 2,786,191.44 and 643,153.46

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Solution

The fourth proportional to 1,857,906.81, 2,786,191.44 and 643,153.46 is: 964,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857,906.81 : 2,786,191.44 = 643,153.46 : x
  2. Step 2: Convert to fraction form
    1,857,906.81/2,786,191.44 = 643,153.46/x
  3. Step 3: Cross multiply
    1,857,906.81x = 2,786,191.44 × 643,153.46
  4. Step 4: Simplify right side
    1,857,906.81x = 1,791,948,650,927.43
  5. Step 5: Solve for x
    x = 1,791,948,650,927.43/1,857,906.81
  6. Step 6: Final answer
    x = 964,498.67

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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.