Finding the Fourth Proportional to 880,782.84, 1,215,486.57 and 478,374.84
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Solution
The fourth proportional to 880,782.84, 1,215,486.57 and 478,374.84 is: 660,160.67
Step by Step Solution
- Step 1: Write the proportion equation
880,782.84 : 1,215,486.57 = 478,374.84 : x - Step 2: Convert to fraction form
880,782.84/1,215,486.57 = 478,374.84/x - Step 3: Cross multiply
880,782.84x = 1,215,486.57 × 478,374.84 - Step 4: Simplify right side
880,782.84x = 581,458,193,445.90 - Step 5: Solve for x
x = 581,458,193,445.90/880,782.84 - Step 6: Final answer
x = 660,160.67
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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.