Home / 1,384,840.80-2,077,455.60-438,112.80

Finding the Fourth Proportional to 1,384,840.80, 2,077,455.60 and 438,112.80

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Solution

The fourth proportional to 1,384,840.80, 2,077,455.60 and 438,112.80 is: 657,230.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,840.80 : 2,077,455.60 = 438,112.80 : x
  2. Step 2: Convert to fraction form
    1,384,840.80/2,077,455.60 = 438,112.80/x
  3. Step 3: Cross multiply
    1,384,840.80x = 2,077,455.60 × 438,112.80
  4. Step 4: Simplify right side
    1,384,840.80x = 910,159,889,791.68
  5. Step 5: Solve for x
    x = 910,159,889,791.68/1,384,840.80
  6. Step 6: Final answer
    x = 657,230.70

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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.