Finding the Fourth Proportional to 666,087.15, 919,223.64 and 379,560.99
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Solution
The fourth proportional to 666,087.15, 919,223.64 and 379,560.99 is: 523,807.48
Step by Step Solution
- Step 1: Write the proportion equation
666,087.15 : 919,223.64 = 379,560.99 : x - Step 2: Convert to fraction form
666,087.15/919,223.64 = 379,560.99/x - Step 3: Cross multiply
666,087.15x = 919,223.64 × 379,560.99 - Step 4: Simplify right side
666,087.15x = 348,901,434,829.80 - Step 5: Solve for x
x = 348,901,434,829.80/666,087.15 - Step 6: Final answer
x = 523,807.48
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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.