Home / 830,512.30-1,245,768.45-814,765.90

Finding the Fourth Proportional to 830,512.30, 1,245,768.45 and 814,765.90

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Solution

The fourth proportional to 830,512.30, 1,245,768.45 and 814,765.90 is: 1,222,148.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,512.30 : 1,245,768.45 = 814,765.90 : x
  2. Step 2: Convert to fraction form
    830,512.30/1,245,768.45 = 814,765.90/x
  3. Step 3: Cross multiply
    830,512.30x = 1,245,768.45 × 814,765.90
  4. Step 4: Simplify right side
    830,512.30x = 1,015,009,652,355.86
  5. Step 5: Solve for x
    x = 1,015,009,652,355.86/830,512.30
  6. Step 6: Final answer
    x = 1,222,148.85

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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.