Home / 2,145,918.40-3,219,266.40-1,078,273.60

Finding the Fourth Proportional to 2,145,918.40, 3,219,266.40 and 1,078,273.60

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Solution

The fourth proportional to 2,145,918.40, 3,219,266.40 and 1,078,273.60 is: 1,617,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,918.40 : 3,219,266.40 = 1,078,273.60 : x
  2. Step 2: Convert to fraction form
    2,145,918.40/3,219,266.40 = 1,078,273.60/x
  3. Step 3: Cross multiply
    2,145,918.40x = 3,219,266.40 × 1,078,273.60
  4. Step 4: Simplify right side
    2,145,918.40x = 3,471,249,970,487.04
  5. Step 5: Solve for x
    x = 3,471,249,970,487.04/2,145,918.40
  6. Step 6: Final answer
    x = 1,617,605.76

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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.