Home / 1,438,892.28-1,983,826.62-1,179,815.40

Finding the Fourth Proportional to 1,438,892.28, 1,983,826.62 and 1,179,815.40

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Solution

The fourth proportional to 1,438,892.28, 1,983,826.62 and 1,179,815.40 is: 1,626,632.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,892.28 : 1,983,826.62 = 1,179,815.40 : x
  2. Step 2: Convert to fraction form
    1,438,892.28/1,983,826.62 = 1,179,815.40/x
  3. Step 3: Cross multiply
    1,438,892.28x = 1,983,826.62 × 1,179,815.40
  4. Step 4: Simplify right side
    1,438,892.28x = 2,340,549,197,205.95
  5. Step 5: Solve for x
    x = 2,340,549,197,205.95/1,438,892.28
  6. Step 6: Final answer
    x = 1,626,632.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.