Finding the Fourth Proportional to 808,239.62, 1,115,349.18 and 445,657.34
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Solution
The fourth proportional to 808,239.62, 1,115,349.18 and 445,657.34 is: 614,995.28
Step by Step Solution
- Step 1: Write the proportion equation
808,239.62 : 1,115,349.18 = 445,657.34 : x - Step 2: Convert to fraction form
808,239.62/1,115,349.18 = 445,657.34/x - Step 3: Cross multiply
808,239.62x = 1,115,349.18 × 445,657.34 - Step 4: Simplify right side
808,239.62x = 497,063,548,729.98 - Step 5: Solve for x
x = 497,063,548,729.98/808,239.62 - Step 6: Final answer
x = 614,995.28
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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.