Home / 820,590.90-1,230,763.23-259,552.50

Finding the Fourth Proportional to 820,590.90, 1,230,763.23 and 259,552.50

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Solution

The fourth proportional to 820,590.90, 1,230,763.23 and 259,552.50 is: 389,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,590.90 : 1,230,763.23 = 259,552.50 : x
  2. Step 2: Convert to fraction form
    820,590.90/1,230,763.23 = 259,552.50/x
  3. Step 3: Cross multiply
    820,590.90x = 1,230,763.23 × 259,552.50
  4. Step 4: Simplify right side
    820,590.90x = 319,447,673,254.58
  5. Step 5: Solve for x
    x = 319,447,673,254.58/820,590.90
  6. Step 6: Final answer
    x = 389,289.81

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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.