Home / 3,128,775-4,317,709.68-1,697,991

Finding the Fourth Proportional to 3,128,775, 4,317,709.68 and 1,697,991

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Solution

The fourth proportional to 3,128,775, 4,317,709.68 and 1,697,991 is: 2,343,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,775 : 4,317,709.68 = 1,697,991 : x
  2. Step 2: Convert to fraction form
    3,128,775/4,317,709.68 = 1,697,991/x
  3. Step 3: Cross multiply
    3,128,775x = 4,317,709.68 × 1,697,991
  4. Step 4: Simplify right side
    3,128,775x = 7,331,432,177,252.88
  5. Step 5: Solve for x
    x = 7,331,432,177,252.88/3,128,775
  6. Step 6: Final answer
    x = 2,343,227.68

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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.