Home / 1,207,816.65-1,811,953.40-398,247.57

Finding the Fourth Proportional to 1,207,816.65, 1,811,953.40 and 398,247.57

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Solution

The fourth proportional to 1,207,816.65, 1,811,953.40 and 398,247.57 is: 597,446.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,816.65 : 1,811,953.40 = 398,247.57 : x
  2. Step 2: Convert to fraction form
    1,207,816.65/1,811,953.40 = 398,247.57/x
  3. Step 3: Cross multiply
    1,207,816.65x = 1,811,953.40 × 398,247.57
  4. Step 4: Simplify right side
    1,207,816.65x = 721,606,036,512.00
  5. Step 5: Solve for x
    x = 721,606,036,512.00/1,207,816.65
  6. Step 6: Final answer
    x = 597,446.67

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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.