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Finding the Fourth Proportional to 494,189.40, 681,920.40 and 350,897.16

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Solution

The fourth proportional to 494,189.40, 681,920.40 and 350,897.16 is: 484,194.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,189.40 : 681,920.40 = 350,897.16 : x
  2. Step 2: Convert to fraction form
    494,189.40/681,920.40 = 350,897.16/x
  3. Step 3: Cross multiply
    494,189.40x = 681,920.40 × 350,897.16
  4. Step 4: Simplify right side
    494,189.40x = 239,283,931,706.06
  5. Step 5: Solve for x
    x = 239,283,931,706.06/494,189.40
  6. Step 6: Final answer
    x = 484,194.79

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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.