Home / 1,115,791.40-1,540,186.98-663,077

Finding the Fourth Proportional to 1,115,791.40, 1,540,186.98 and 663,077

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Solution

The fourth proportional to 1,115,791.40, 1,540,186.98 and 663,077 is: 915,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,791.40 : 1,540,186.98 = 663,077 : x
  2. Step 2: Convert to fraction form
    1,115,791.40/1,540,186.98 = 663,077/x
  3. Step 3: Cross multiply
    1,115,791.40x = 1,540,186.98 × 663,077
  4. Step 4: Simplify right side
    1,115,791.40x = 1,021,262,562,137.46
  5. Step 5: Solve for x
    x = 1,021,262,562,137.46/1,115,791.40
  6. Step 6: Final answer
    x = 915,280.90

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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.