Finding the Fourth Proportional to 665,690.08, 918,427.93 and 379,007.19
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Solution
The fourth proportional to 665,690.08, 918,427.93 and 379,007.19 is: 522,902.17
Step by Step Solution
- Step 1: Write the proportion equation
665,690.08 : 918,427.93 = 379,007.19 : x - Step 2: Convert to fraction form
665,690.08/918,427.93 = 379,007.19/x - Step 3: Cross multiply
665,690.08x = 918,427.93 × 379,007.19 - Step 4: Simplify right side
665,690.08x = 348,090,788,966.82 - Step 5: Solve for x
x = 348,090,788,966.82/665,690.08 - Step 6: Final answer
x = 522,902.17
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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.