Finding the Fourth Proportional to 1,577,702.80, 2,177,232.78 and 898,639.30
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Solution
The fourth proportional to 1,577,702.80, 2,177,232.78 and 898,639.30 is: 1,240,123.89
Step by Step Solution
- Step 1: Write the proportion equation
1,577,702.80 : 2,177,232.78 = 898,639.30 : x - Step 2: Convert to fraction form
1,577,702.80/2,177,232.78 = 898,639.30/x - Step 3: Cross multiply
1,577,702.80x = 2,177,232.78 × 898,639.30 - Step 4: Simplify right side
1,577,702.80x = 1,956,546,941,356.25 - Step 5: Solve for x
x = 1,956,546,941,356.25/1,577,702.80 - Step 6: Final answer
x = 1,240,123.89
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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.