Finding the Fourth Proportional to 639,355.67, 882,308.99 and 352,873.70
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Solution
The fourth proportional to 639,355.67, 882,308.99 and 352,873.70 is: 486,964.69
Step by Step Solution
- Step 1: Write the proportion equation
639,355.67 : 882,308.99 = 352,873.70 : x - Step 2: Convert to fraction form
639,355.67/882,308.99 = 352,873.70/x - Step 3: Cross multiply
639,355.67x = 882,308.99 × 352,873.70 - Step 4: Simplify right side
639,355.67x = 311,343,631,668.65 - Step 5: Solve for x
x = 311,343,631,668.65/639,355.67 - Step 6: Final answer
x = 486,964.69
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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.