Home / 1,243,999.01-1,866,083.31-423,003.36

Finding the Fourth Proportional to 1,243,999.01, 1,866,083.31 and 423,003.36

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Solution

The fourth proportional to 1,243,999.01, 1,866,083.31 and 423,003.36 is: 634,533.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,999.01 : 1,866,083.31 = 423,003.36 : x
  2. Step 2: Convert to fraction form
    1,243,999.01/1,866,083.31 = 423,003.36/x
  3. Step 3: Cross multiply
    1,243,999.01x = 1,866,083.31 × 423,003.36
  4. Step 4: Simplify right side
    1,243,999.01x = 789,359,508,054.91
  5. Step 5: Solve for x
    x = 789,359,508,054.91/1,243,999.01
  6. Step 6: Final answer
    x = 634,533.87

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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.