Finding the Fourth Proportional to 487,194.68, 671,995.06 and 317,658.44
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Solution
The fourth proportional to 487,194.68, 671,995.06 and 317,658.44 is: 438,151.14
Step by Step Solution
- Step 1: Write the proportion equation
487,194.68 : 671,995.06 = 317,658.44 : x - Step 2: Convert to fraction form
487,194.68/671,995.06 = 317,658.44/x - Step 3: Cross multiply
487,194.68x = 671,995.06 × 317,658.44 - Step 4: Simplify right side
487,194.68x = 213,464,902,447.31 - Step 5: Solve for x
x = 213,464,902,447.31/487,194.68 - Step 6: Final answer
x = 438,151.14
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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.