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Finding the Fourth Proportional to 609,792.38, 841,806 and 428,659.58

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Solution

The fourth proportional to 609,792.38, 841,806 and 428,659.58 is: 591,755.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,792.38 : 841,806 = 428,659.58 : x
  2. Step 2: Convert to fraction form
    609,792.38/841,806 = 428,659.58/x
  3. Step 3: Cross multiply
    609,792.38x = 841,806 × 428,659.58
  4. Step 4: Simplify right side
    609,792.38x = 360,848,202,192.45
  5. Step 5: Solve for x
    x = 360,848,202,192.45/609,792.38
  6. Step 6: Final answer
    x = 591,755.85

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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.