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Finding the Fourth Proportional to 662,437.40, 992,489.70 and 543,464.60

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Solution

The fourth proportional to 662,437.40, 992,489.70 and 543,464.60 is: 814,239.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,437.40 : 992,489.70 = 543,464.60 : x
  2. Step 2: Convert to fraction form
    662,437.40/992,489.70 = 543,464.60/x
  3. Step 3: Cross multiply
    662,437.40x = 992,489.70 × 543,464.60
  4. Step 4: Simplify right side
    662,437.40x = 539,383,017,814.62
  5. Step 5: Solve for x
    x = 539,383,017,814.62/662,437.40
  6. Step 6: Final answer
    x = 814,239.98

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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.