Home / 1,159,371.80-1,738,247.70-685,813.40

Finding the Fourth Proportional to 1,159,371.80, 1,738,247.70 and 685,813.40

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Solution

The fourth proportional to 1,159,371.80, 1,738,247.70 and 685,813.40 is: 1,028,240.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,371.80 : 1,738,247.70 = 685,813.40 : x
  2. Step 2: Convert to fraction form
    1,159,371.80/1,738,247.70 = 685,813.40/x
  3. Step 3: Cross multiply
    1,159,371.80x = 1,738,247.70 × 685,813.40
  4. Step 4: Simplify right side
    1,159,371.80x = 1,192,113,565,179.18
  5. Step 5: Solve for x
    x = 1,192,113,565,179.18/1,159,371.80
  6. Step 6: Final answer
    x = 1,028,240.95

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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.