Finding the Fourth Proportional to 880,771.34, 1,215,470.67 and 478,363.34
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Solution
The fourth proportional to 880,771.34, 1,215,470.67 and 478,363.34 is: 660,144.79
Step by Step Solution
- Step 1: Write the proportion equation
880,771.34 : 1,215,470.67 = 478,363.34 : x - Step 2: Convert to fraction form
880,771.34/1,215,470.67 = 478,363.34/x - Step 3: Cross multiply
880,771.34x = 1,215,470.67 × 478,363.34 - Step 4: Simplify right side
880,771.34x = 581,436,609,373.24 - Step 5: Solve for x
x = 581,436,609,373.24/880,771.34 - Step 6: Final answer
x = 660,144.79
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1.5x scale
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.