Home / 830,003.10-1,245,004.65-682,380.60

Finding the Fourth Proportional to 830,003.10, 1,245,004.65 and 682,380.60

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Solution

The fourth proportional to 830,003.10, 1,245,004.65 and 682,380.60 is: 1,023,570.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,003.10 : 1,245,004.65 = 682,380.60 : x
  2. Step 2: Convert to fraction form
    830,003.10/1,245,004.65 = 682,380.60/x
  3. Step 3: Cross multiply
    830,003.10x = 1,245,004.65 × 682,380.60
  4. Step 4: Simplify right side
    830,003.10x = 849,567,020,069.79
  5. Step 5: Solve for x
    x = 849,567,020,069.79/830,003.10
  6. Step 6: Final answer
    x = 1,023,570.90

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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.