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Finding the Fourth Proportional to 550,488.24, 759,494.32 and 320,993.60

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Solution

The fourth proportional to 550,488.24, 759,494.32 and 320,993.60 is: 442,866.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,488.24 : 759,494.32 = 320,993.60 : x
  2. Step 2: Convert to fraction form
    550,488.24/759,494.32 = 320,993.60/x
  3. Step 3: Cross multiply
    550,488.24x = 759,494.32 × 320,993.60
  4. Step 4: Simplify right side
    550,488.24x = 243,792,815,956.35
  5. Step 5: Solve for x
    x = 243,792,815,956.35/550,488.24
  6. Step 6: Final answer
    x = 442,866.53

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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.