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Finding the Fourth Proportional to 550,448.40, 825,672.60 and 492,711.60

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Solution

The fourth proportional to 550,448.40, 825,672.60 and 492,711.60 is: 739,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,448.40 : 825,672.60 = 492,711.60 : x
  2. Step 2: Convert to fraction form
    550,448.40/825,672.60 = 492,711.60/x
  3. Step 3: Cross multiply
    550,448.40x = 825,672.60 × 492,711.60
  4. Step 4: Simplify right side
    550,448.40x = 406,818,467,822.16
  5. Step 5: Solve for x
    x = 406,818,467,822.16/550,448.40
  6. Step 6: Final answer
    x = 739,067.40

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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.