Home / 1,135,403.86-1,701,177.86-685,178.69

Finding the Fourth Proportional to 1,135,403.86, 1,701,177.86 and 685,178.69

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Solution

The fourth proportional to 1,135,403.86, 1,701,177.86 and 685,178.69 is: 1,026,604.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,403.86 : 1,701,177.86 = 685,178.69 : x
  2. Step 2: Convert to fraction form
    1,135,403.86/1,701,177.86 = 685,178.69/x
  3. Step 3: Cross multiply
    1,135,403.86x = 1,701,177.86 × 685,178.69
  4. Step 4: Simplify right side
    1,135,403.86x = 1,165,610,806,019.34
  5. Step 5: Solve for x
    x = 1,165,610,806,019.34/1,135,403.86
  6. Step 6: Final answer
    x = 1,026,604.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.