Finding the Fourth Proportional to 612,135.80, 917,307.30 and 548,955.80
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Solution
The fourth proportional to 612,135.80, 917,307.30 and 548,955.80 is: 822,629.82
Step by Step Solution
- Step 1: Write the proportion equation
612,135.80 : 917,307.30 = 548,955.80 : x - Step 2: Convert to fraction form
612,135.80/917,307.30 = 548,955.80/x - Step 3: Cross multiply
612,135.80x = 917,307.30 × 548,955.80 - Step 4: Simplify right side
612,135.80x = 503,561,162,717.34 - Step 5: Solve for x
x = 503,561,162,717.34/612,135.80 - Step 6: Final answer
x = 822,629.82
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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.