Finding the Fourth Proportional to 639,623.73, 882,362.09 and 381,318.67
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Solution
The fourth proportional to 639,623.73, 882,362.09 and 381,318.67 is: 526,029.79
Step by Step Solution
- Step 1: Write the proportion equation
639,623.73 : 882,362.09 = 381,318.67 : x - Step 2: Convert to fraction form
639,623.73/882,362.09 = 381,318.67/x - Step 3: Cross multiply
639,623.73x = 882,362.09 × 381,318.67 - Step 4: Simplify right side
639,623.73x = 336,461,138,617.22 - Step 5: Solve for x
x = 336,461,138,617.22/639,623.73 - Step 6: Final answer
x = 526,029.79
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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.