Home / 1,240,776.81-1,859,982.26-398,736.81

Finding the Fourth Proportional to 1,240,776.81, 1,859,982.26 and 398,736.81

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Solution

The fourth proportional to 1,240,776.81, 1,859,982.26 and 398,736.81 is: 597,725.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,776.81 : 1,859,982.26 = 398,736.81 : x
  2. Step 2: Convert to fraction form
    1,240,776.81/1,859,982.26 = 398,736.81/x
  3. Step 3: Cross multiply
    1,240,776.81x = 1,859,982.26 × 398,736.81
  4. Step 4: Simplify right side
    1,240,776.81x = 741,643,391,015.31
  5. Step 5: Solve for x
    x = 741,643,391,015.31/1,240,776.81
  6. Step 6: Final answer
    x = 597,725.06

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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.