Home / 722,486.85-1,084,086.36-338,261.67

Finding the Fourth Proportional to 722,486.85, 1,084,086.36 and 338,261.67

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Solution

The fourth proportional to 722,486.85, 1,084,086.36 and 338,261.67 is: 507,559.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,486.85 : 1,084,086.36 = 338,261.67 : x
  2. Step 2: Convert to fraction form
    722,486.85/1,084,086.36 = 338,261.67/x
  3. Step 3: Cross multiply
    722,486.85x = 1,084,086.36 × 338,261.67
  4. Step 4: Simplify right side
    722,486.85x = 366,704,860,866.51
  5. Step 5: Solve for x
    x = 366,704,860,866.51/722,486.85
  6. Step 6: Final answer
    x = 507,559.22

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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.