Finding the Fourth Proportional to 639,484.74, 882,495.06 and 352,998.66
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Solution
The fourth proportional to 639,484.74, 882,495.06 and 352,998.66 is: 487,141.53
Step by Step Solution
- Step 1: Write the proportion equation
639,484.74 : 882,495.06 = 352,998.66 : x - Step 2: Convert to fraction form
639,484.74/882,495.06 = 352,998.66/x - Step 3: Cross multiply
639,484.74x = 882,495.06 × 352,998.66 - Step 4: Simplify right side
639,484.74x = 311,519,573,636.62 - Step 5: Solve for x
x = 311,519,573,636.62/639,484.74 - Step 6: Final answer
x = 487,141.53
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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.