Home / 1,321,716-1,824,123.60-785,172

Finding the Fourth Proportional to 1,321,716, 1,824,123.60 and 785,172

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Solution

The fourth proportional to 1,321,716, 1,824,123.60 and 785,172 is: 1,083,629.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,716 : 1,824,123.60 = 785,172 : x
  2. Step 2: Convert to fraction form
    1,321,716/1,824,123.60 = 785,172/x
  3. Step 3: Cross multiply
    1,321,716x = 1,824,123.60 × 785,172
  4. Step 4: Simplify right side
    1,321,716x = 1,432,250,775,259.20
  5. Step 5: Solve for x
    x = 1,432,250,775,259.20/1,321,716
  6. Step 6: Final answer
    x = 1,083,629.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.