Home / 690,198.48-1,035,402.21-216,839.34

Finding the Fourth Proportional to 690,198.48, 1,035,402.21 and 216,839.34

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Solution

The fourth proportional to 690,198.48, 1,035,402.21 and 216,839.34 is: 325,291.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,198.48 : 1,035,402.21 = 216,839.34 : x
  2. Step 2: Convert to fraction form
    690,198.48/1,035,402.21 = 216,839.34/x
  3. Step 3: Cross multiply
    690,198.48x = 1,035,402.21 × 216,839.34
  4. Step 4: Simplify right side
    690,198.48x = 224,515,931,850.94
  5. Step 5: Solve for x
    x = 224,515,931,850.94/690,198.48
  6. Step 6: Final answer
    x = 325,291.84

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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.