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Finding the Fourth Proportional to 550,379.34, 759,529.86 and 305,368.71

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Solution

The fourth proportional to 550,379.34, 759,529.86 and 305,368.71 is: 421,412.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,379.34 : 759,529.86 = 305,368.71 : x
  2. Step 2: Convert to fraction form
    550,379.34/759,529.86 = 305,368.71/x
  3. Step 3: Cross multiply
    550,379.34x = 759,529.86 × 305,368.71
  4. Step 4: Simplify right side
    550,379.34x = 231,936,653,554.68
  5. Step 5: Solve for x
    x = 231,936,653,554.68/550,379.34
  6. Step 6: Final answer
    x = 421,412.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.