Home / 1,413,817.60-2,120,726.40-853,945.60

Finding the Fourth Proportional to 1,413,817.60, 2,120,726.40 and 853,945.60

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Solution

The fourth proportional to 1,413,817.60, 2,120,726.40 and 853,945.60 is: 1,280,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,817.60 : 2,120,726.40 = 853,945.60 : x
  2. Step 2: Convert to fraction form
    1,413,817.60/2,120,726.40 = 853,945.60/x
  3. Step 3: Cross multiply
    1,413,817.60x = 2,120,726.40 × 853,945.60
  4. Step 4: Simplify right side
    1,413,817.60x = 1,810,984,978,083.84
  5. Step 5: Solve for x
    x = 1,810,984,978,083.84/1,413,817.60
  6. Step 6: Final answer
    x = 1,280,918.40

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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.