Home / 808,765.80-1,213,407.90-542,826.60

Finding the Fourth Proportional to 808,765.80, 1,213,407.90 and 542,826.60

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Solution

The fourth proportional to 808,765.80, 1,213,407.90 and 542,826.60 is: 814,413.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,765.80 : 1,213,407.90 = 542,826.60 : x
  2. Step 2: Convert to fraction form
    808,765.80/1,213,407.90 = 542,826.60/x
  3. Step 3: Cross multiply
    808,765.80x = 1,213,407.90 × 542,826.60
  4. Step 4: Simplify right side
    808,765.80x = 658,670,084,770.14
  5. Step 5: Solve for x
    x = 658,670,084,770.14/808,765.80
  6. Step 6: Final answer
    x = 814,413.87

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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.