Home / 3,128,774-4,317,708.30-1,697,990

Finding the Fourth Proportional to 3,128,774, 4,317,708.30 and 1,697,990

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Solution

The fourth proportional to 3,128,774, 4,317,708.30 and 1,697,990 is: 2,343,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,774 : 4,317,708.30 = 1,697,990 : x
  2. Step 2: Convert to fraction form
    3,128,774/4,317,708.30 = 1,697,990/x
  3. Step 3: Cross multiply
    3,128,774x = 4,317,708.30 × 1,697,990
  4. Step 4: Simplify right side
    3,128,774x = 7,331,425,516,317
  5. Step 5: Solve for x
    x = 7,331,425,516,317/3,128,774
  6. Step 6: Final answer
    x = 2,343,226.30

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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.