Finding the Fourth Proportional to 758,679.08, 1,138,657.10 and 379,486.08
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Solution
The fourth proportional to 758,679.08, 1,138,657.10 and 379,486.08 is: 569,548.48
Step by Step Solution
- Step 1: Write the proportion equation
758,679.08 : 1,138,657.10 = 379,486.08 : x - Step 2: Convert to fraction form
758,679.08/1,138,657.10 = 379,486.08/x - Step 3: Cross multiply
758,679.08x = 1,138,657.10 × 379,486.08 - Step 4: Simplify right side
758,679.08x = 432,104,517,445.74 - Step 5: Solve for x
x = 432,104,517,445.74/758,679.08 - Step 6: Final answer
x = 569,548.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.