Home / 1,215,843.53-1,823,386.22-457,790.45

Finding the Fourth Proportional to 1,215,843.53, 1,823,386.22 and 457,790.45

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Solution

The fourth proportional to 1,215,843.53, 1,823,386.22 and 457,790.45 is: 686,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,843.53 : 1,823,386.22 = 457,790.45 : x
  2. Step 2: Convert to fraction form
    1,215,843.53/1,823,386.22 = 457,790.45/x
  3. Step 3: Cross multiply
    1,215,843.53x = 1,823,386.22 × 457,790.45
  4. Step 4: Simplify right side
    1,215,843.53x = 834,728,795,888.65
  5. Step 5: Solve for x
    x = 834,728,795,888.65/1,215,843.53
  6. Step 6: Final answer
    x = 686,542.94

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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.