Finding the Fourth Proportional to 879,595.34, 1,213,972.11 and 557,335.62
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Solution
The fourth proportional to 879,595.34, 1,213,972.11 and 557,335.62 is: 769,205.87
Step by Step Solution
- Step 1: Write the proportion equation
879,595.34 : 1,213,972.11 = 557,335.62 : x - Step 2: Convert to fraction form
879,595.34/1,213,972.11 = 557,335.62/x - Step 3: Cross multiply
879,595.34x = 1,213,972.11 × 557,335.62 - Step 4: Simplify right side
879,595.34x = 676,589,898,589.56 - Step 5: Solve for x
x = 676,589,898,589.56/879,595.34 - Step 6: Final answer
x = 769,205.87
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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.