Home / 1,397,217.60-2,097,292.32-1,238,310.72

Finding the Fourth Proportional to 1,397,217.60, 2,097,292.32 and 1,238,310.72

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Solution

The fourth proportional to 1,397,217.60, 2,097,292.32 and 1,238,310.72 is: 1,858,765.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,217.60 : 2,097,292.32 = 1,238,310.72 : x
  2. Step 2: Convert to fraction form
    1,397,217.60/2,097,292.32 = 1,238,310.72/x
  3. Step 3: Cross multiply
    1,397,217.60x = 2,097,292.32 × 1,238,310.72
  4. Step 4: Simplify right side
    1,397,217.60x = 2,597,099,562,829.67
  5. Step 5: Solve for x
    x = 2,597,099,562,829.67/1,397,217.60
  6. Step 6: Final answer
    x = 1,858,765.28

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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.