Home / 1,230,969.96-1,699,021.98-721,836.36

Finding the Fourth Proportional to 1,230,969.96, 1,699,021.98 and 721,836.36

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Solution

The fourth proportional to 1,230,969.96, 1,699,021.98 and 721,836.36 is: 996,300.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,969.96 : 1,699,021.98 = 721,836.36 : x
  2. Step 2: Convert to fraction form
    1,230,969.96/1,699,021.98 = 721,836.36/x
  3. Step 3: Cross multiply
    1,230,969.96x = 1,699,021.98 × 721,836.36
  4. Step 4: Simplify right side
    1,230,969.96x = 1,226,415,841,603.19
  5. Step 5: Solve for x
    x = 1,226,415,841,603.19/1,230,969.96
  6. Step 6: Final answer
    x = 996,300.38

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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.