Home / 1,370,955.54-1,891,649.79-861,362.67

Finding the Fourth Proportional to 1,370,955.54, 1,891,649.79 and 861,362.67

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Solution

The fourth proportional to 1,370,955.54, 1,891,649.79 and 861,362.67 is: 1,188,511.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,955.54 : 1,891,649.79 = 861,362.67 : x
  2. Step 2: Convert to fraction form
    1,370,955.54/1,891,649.79 = 861,362.67/x
  3. Step 3: Cross multiply
    1,370,955.54x = 1,891,649.79 × 861,362.67
  4. Step 4: Simplify right side
    1,370,955.54x = 1,629,396,513,819.34
  5. Step 5: Solve for x
    x = 1,629,396,513,819.34/1,370,955.54
  6. Step 6: Final answer
    x = 1,188,511.56

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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.