Home / 1,139,893.20-1,574,391.06-911,242.35

Finding the Fourth Proportional to 1,139,893.20, 1,574,391.06 and 911,242.35

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Solution

The fourth proportional to 1,139,893.20, 1,574,391.06 and 911,242.35 is: 1,258,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,893.20 : 1,574,391.06 = 911,242.35 : x
  2. Step 2: Convert to fraction form
    1,139,893.20/1,574,391.06 = 911,242.35/x
  3. Step 3: Cross multiply
    1,139,893.20x = 1,574,391.06 × 911,242.35
  4. Step 4: Simplify right side
    1,139,893.20x = 1,434,651,809,333.39
  5. Step 5: Solve for x
    x = 1,434,651,809,333.39/1,139,893.20
  6. Step 6: Final answer
    x = 1,258,584.41

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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.