Home / 711,812.21-982,300.94-389,522.33

Finding the Fourth Proportional to 711,812.21, 982,300.94 and 389,522.33

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Solution

The fourth proportional to 711,812.21, 982,300.94 and 389,522.33 is: 537,540.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,812.21 : 982,300.94 = 389,522.33 : x
  2. Step 2: Convert to fraction form
    711,812.21/982,300.94 = 389,522.33/x
  3. Step 3: Cross multiply
    711,812.21x = 982,300.94 × 389,522.33
  4. Step 4: Simplify right side
    711,812.21x = 382,628,144,050.87
  5. Step 5: Solve for x
    x = 382,628,144,050.87/711,812.21
  6. Step 6: Final answer
    x = 537,540.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.