Home / 855,384.21-1,283,361.33-286,821.52

Finding the Fourth Proportional to 855,384.21, 1,283,361.33 and 286,821.52

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Solution

The fourth proportional to 855,384.21, 1,283,361.33 and 286,821.52 is: 430,327.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,384.21 : 1,283,361.33 = 286,821.52 : x
  2. Step 2: Convert to fraction form
    855,384.21/1,283,361.33 = 286,821.52/x
  3. Step 3: Cross multiply
    855,384.21x = 1,283,361.33 × 286,821.52
  4. Step 4: Simplify right side
    855,384.21x = 368,095,647,379.82
  5. Step 5: Solve for x
    x = 368,095,647,379.82/855,384.21
  6. Step 6: Final answer
    x = 430,327.85

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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.