Home / 1,311,051.51-1,809,423.62-738,203.31

Finding the Fourth Proportional to 1,311,051.51, 1,809,423.62 and 738,203.31

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Solution

The fourth proportional to 1,311,051.51, 1,809,423.62 and 738,203.31 is: 1,018,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,051.51 : 1,809,423.62 = 738,203.31 : x
  2. Step 2: Convert to fraction form
    1,311,051.51/1,809,423.62 = 738,203.31/x
  3. Step 3: Cross multiply
    1,311,051.51x = 1,809,423.62 × 738,203.31
  4. Step 4: Simplify right side
    1,311,051.51x = 1,335,722,501,785.17
  5. Step 5: Solve for x
    x = 1,335,722,501,785.17/1,311,051.51
  6. Step 6: Final answer
    x = 1,018,817.71

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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.