Home / 1,235,867-1,853,811.86-487,913

Finding the Fourth Proportional to 1,235,867, 1,853,811.86 and 487,913

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Solution

The fourth proportional to 1,235,867, 1,853,811.86 and 487,913 is: 731,873.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,867 : 1,853,811.86 = 487,913 : x
  2. Step 2: Convert to fraction form
    1,235,867/1,853,811.86 = 487,913/x
  3. Step 3: Cross multiply
    1,235,867x = 1,853,811.86 × 487,913
  4. Step 4: Simplify right side
    1,235,867x = 904,498,906,048.18
  5. Step 5: Solve for x
    x = 904,498,906,048.18/1,235,867
  6. Step 6: Final answer
    x = 731,873.98

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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.