Home / 820,615.90-1,230,800.73-259,577.50

Finding the Fourth Proportional to 820,615.90, 1,230,800.73 and 259,577.50

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Solution

The fourth proportional to 820,615.90, 1,230,800.73 and 259,577.50 is: 389,327.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,615.90 : 1,230,800.73 = 259,577.50 : x
  2. Step 2: Convert to fraction form
    820,615.90/1,230,800.73 = 259,577.50/x
  3. Step 3: Cross multiply
    820,615.90x = 1,230,800.73 × 259,577.50
  4. Step 4: Simplify right side
    820,615.90x = 319,488,176,491.58
  5. Step 5: Solve for x
    x = 319,488,176,491.58/820,615.90
  6. Step 6: Final answer
    x = 389,327.30

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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.