Finding the Fourth Proportional to 561,471.88, 774,868.02 and 316,517.08
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Solution
The fourth proportional to 561,471.88, 774,868.02 and 316,517.08 is: 436,814.33
Step by Step Solution
- Step 1: Write the proportion equation
561,471.88 : 774,868.02 = 316,517.08 : x - Step 2: Convert to fraction form
561,471.88/774,868.02 = 316,517.08/x - Step 3: Cross multiply
561,471.88x = 774,868.02 × 316,517.08 - Step 4: Simplify right side
561,471.88x = 245,258,963,075.78 - Step 5: Solve for x
x = 245,258,963,075.78/561,471.88 - Step 6: Final answer
x = 436,814.33
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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.