Home / 1,214,620.40-1,821,930.60-1,025,663.60

Finding the Fourth Proportional to 1,214,620.40, 1,821,930.60 and 1,025,663.60

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Solution

The fourth proportional to 1,214,620.40, 1,821,930.60 and 1,025,663.60 is: 1,538,495.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,620.40 : 1,821,930.60 = 1,025,663.60 : x
  2. Step 2: Convert to fraction form
    1,214,620.40/1,821,930.60 = 1,025,663.60/x
  3. Step 3: Cross multiply
    1,214,620.40x = 1,821,930.60 × 1,025,663.60
  4. Step 4: Simplify right side
    1,214,620.40x = 1,868,687,898,146.16
  5. Step 5: Solve for x
    x = 1,868,687,898,146.16/1,214,620.40
  6. Step 6: Final answer
    x = 1,538,495.40

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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.