Finding the Fourth Proportional to 916,394.16, 1,374,789.96 and 383,640.96
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Solution
The fourth proportional to 916,394.16, 1,374,789.96 and 383,640.96 is: 575,544.63
Step by Step Solution
- Step 1: Write the proportion equation
916,394.16 : 1,374,789.96 = 383,640.96 : x - Step 2: Convert to fraction form
916,394.16/1,374,789.96 = 383,640.96/x - Step 3: Cross multiply
916,394.16x = 1,374,789.96 × 383,640.96 - Step 4: Simplify right side
916,394.16x = 527,425,740,052.76 - Step 5: Solve for x
x = 527,425,740,052.76/916,394.16 - Step 6: Final answer
x = 575,544.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.