Home / 1,720,309.07-2,374,387.72-1,091,245.86

Finding the Fourth Proportional to 1,720,309.07, 2,374,387.72 and 1,091,245.86

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Solution

The fourth proportional to 1,720,309.07, 2,374,387.72 and 1,091,245.86 is: 1,506,148.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,309.07 : 2,374,387.72 = 1,091,245.86 : x
  2. Step 2: Convert to fraction form
    1,720,309.07/2,374,387.72 = 1,091,245.86/x
  3. Step 3: Cross multiply
    1,720,309.07x = 2,374,387.72 × 1,091,245.86
  4. Step 4: Simplify right side
    1,720,309.07x = 2,591,040,766,756.72
  5. Step 5: Solve for x
    x = 2,591,040,766,756.72/1,720,309.07
  6. Step 6: Final answer
    x = 1,506,148.41

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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.