Home / 1,458,076.40-2,187,114.60-820,347.20

Finding the Fourth Proportional to 1,458,076.40, 2,187,114.60 and 820,347.20

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Solution

The fourth proportional to 1,458,076.40, 2,187,114.60 and 820,347.20 is: 1,230,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,076.40 : 2,187,114.60 = 820,347.20 : x
  2. Step 2: Convert to fraction form
    1,458,076.40/2,187,114.60 = 820,347.20/x
  3. Step 3: Cross multiply
    1,458,076.40x = 2,187,114.60 × 820,347.20
  4. Step 4: Simplify right side
    1,458,076.40x = 1,794,193,338,189.12
  5. Step 5: Solve for x
    x = 1,794,193,338,189.12/1,458,076.40
  6. Step 6: Final answer
    x = 1,230,520.80

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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.