Finding the Fourth Proportional to 666,084.15, 919,219.50 and 379,557.99
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Solution
The fourth proportional to 666,084.15, 919,219.50 and 379,557.99 is: 523,803.34
Step by Step Solution
- Step 1: Write the proportion equation
666,084.15 : 919,219.50 = 379,557.99 : x - Step 2: Convert to fraction form
666,084.15/919,219.50 = 379,557.99/x - Step 3: Cross multiply
666,084.15x = 919,219.50 × 379,557.99 - Step 4: Simplify right side
666,084.15x = 348,897,105,788.81 - Step 5: Solve for x
x = 348,897,105,788.81/666,084.15 - Step 6: Final answer
x = 523,803.34
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1.5x scale
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.