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Finding the Fourth Proportional to 662,519.40, 992,612.70 and 543,546.60

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Solution

The fourth proportional to 662,519.40, 992,612.70 and 543,546.60 is: 814,362.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,519.40 : 992,612.70 = 543,546.60 : x
  2. Step 2: Convert to fraction form
    662,519.40/992,612.70 = 543,546.60/x
  3. Step 3: Cross multiply
    662,519.40x = 992,612.70 × 543,546.60
  4. Step 4: Simplify right side
    662,519.40x = 539,531,258,201.82
  5. Step 5: Solve for x
    x = 539,531,258,201.82/662,519.40
  6. Step 6: Final answer
    x = 814,362.96

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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.