Finding the Fourth Proportional to 662,905.27, 914,779.74 and 387,288.70
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Solution
The fourth proportional to 662,905.27, 914,779.74 and 387,288.70 is: 534,441.15
Step by Step Solution
- Step 1: Write the proportion equation
662,905.27 : 914,779.74 = 387,288.70 : x - Step 2: Convert to fraction form
662,905.27/914,779.74 = 387,288.70/x - Step 3: Cross multiply
662,905.27x = 914,779.74 × 387,288.70 - Step 4: Simplify right side
662,905.27x = 354,283,855,456.32 - Step 5: Solve for x
x = 354,283,855,456.32/662,905.27 - Step 6: Final answer
x = 534,441.15
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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.