Finding the Fourth Proportional to 1,129,377.12, 1,558,095.84 and 645,682.44
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Solution
The fourth proportional to 1,129,377.12, 1,558,095.84 and 645,682.44 is: 890,787.59
Step by Step Solution
- Step 1: Write the proportion equation
1,129,377.12 : 1,558,095.84 = 645,682.44 : x - Step 2: Convert to fraction form
1,129,377.12/1,558,095.84 = 645,682.44/x - Step 3: Cross multiply
1,129,377.12x = 1,558,095.84 × 645,682.44 - Step 4: Simplify right side
1,129,377.12x = 1,006,035,123,725.05 - Step 5: Solve for x
x = 1,006,035,123,725.05/1,129,377.12 - Step 6: Final answer
x = 890,787.59
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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.