Finding the Fourth Proportional to 665,625.14, 918,460.04 and 379,108.70
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Solution
The fourth proportional to 665,625.14, 918,460.04 and 379,108.70 is: 523,111.54
Step by Step Solution
- Step 1: Write the proportion equation
665,625.14 : 918,460.04 = 379,108.70 : x - Step 2: Convert to fraction form
665,625.14/918,460.04 = 379,108.70/x - Step 3: Cross multiply
665,625.14x = 918,460.04 × 379,108.70 - Step 4: Simplify right side
665,625.14x = 348,196,191,766.35 - Step 5: Solve for x
x = 348,196,191,766.35/665,625.14 - Step 6: Final answer
x = 523,111.54
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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.