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Finding the Fourth Proportional to 609,729.53, 841,087.72 and 480,190.78

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Solution

The fourth proportional to 609,729.53, 841,087.72 and 480,190.78 is: 662,396.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,729.53 : 841,087.72 = 480,190.78 : x
  2. Step 2: Convert to fraction form
    609,729.53/841,087.72 = 480,190.78/x
  3. Step 3: Cross multiply
    609,729.53x = 841,087.72 × 480,190.78
  4. Step 4: Simplify right side
    609,729.53x = 403,882,567,265.75
  5. Step 5: Solve for x
    x = 403,882,567,265.75/609,729.53
  6. Step 6: Final answer
    x = 662,396.28

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1.5x scale

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.