Home / 3,128,870-4,317,840.60-1,698,086

Finding the Fourth Proportional to 3,128,870, 4,317,840.60 and 1,698,086

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Solution

The fourth proportional to 3,128,870, 4,317,840.60 and 1,698,086 is: 2,343,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,870 : 4,317,840.60 = 1,698,086 : x
  2. Step 2: Convert to fraction form
    3,128,870/4,317,840.60 = 1,698,086/x
  3. Step 3: Cross multiply
    3,128,870x = 4,317,840.60 × 1,698,086
  4. Step 4: Simplify right side
    3,128,870x = 7,332,064,673,091.60
  5. Step 5: Solve for x
    x = 7,332,064,673,091.60/3,128,870
  6. Step 6: Final answer
    x = 2,343,358.68

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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.