Home / 1,389,240.96-1,917,450.27-904,941.96

Finding the Fourth Proportional to 1,389,240.96, 1,917,450.27 and 904,941.96

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Solution

The fourth proportional to 1,389,240.96, 1,917,450.27 and 904,941.96 is: 1,249,013.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,240.96 : 1,917,450.27 = 904,941.96 : x
  2. Step 2: Convert to fraction form
    1,389,240.96/1,917,450.27 = 904,941.96/x
  3. Step 3: Cross multiply
    1,389,240.96x = 1,917,450.27 × 904,941.96
  4. Step 4: Simplify right side
    1,389,240.96x = 1,735,181,205,536.33
  5. Step 5: Solve for x
    x = 1,735,181,205,536.33/1,389,240.96
  6. Step 6: Final answer
    x = 1,249,013.85

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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.