Home / 1,228,017.11-1,833,391.21-938,312.57

Finding the Fourth Proportional to 1,228,017.11, 1,833,391.21 and 938,312.57

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Solution

The fourth proportional to 1,228,017.11, 1,833,391.21 and 938,312.57 is: 1,400,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,017.11 : 1,833,391.21 = 938,312.57 : x
  2. Step 2: Convert to fraction form
    1,228,017.11/1,833,391.21 = 938,312.57/x
  3. Step 3: Cross multiply
    1,228,017.11x = 1,833,391.21 × 938,312.57
  4. Step 4: Simplify right side
    1,228,017.11x = 1,720,294,017,165.04
  5. Step 5: Solve for x
    x = 1,720,294,017,165.04/1,228,017.11
  6. Step 6: Final answer
    x = 1,400,871.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.