Finding the Fourth Proportional to 414,279.26, 618,394.49 and 355,492.70
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Solution
The fourth proportional to 414,279.26, 618,394.49 and 355,492.70 is: 530,643.81
Step by Step Solution
- Step 1: Write the proportion equation
414,279.26 : 618,394.49 = 355,492.70 : x - Step 2: Convert to fraction form
414,279.26/618,394.49 = 355,492.70/x - Step 3: Cross multiply
414,279.26x = 618,394.49 × 355,492.70 - Step 4: Simplify right side
414,279.26x = 219,834,722,045.79 - Step 5: Solve for x
x = 219,834,722,045.79/414,279.26 - Step 6: Final answer
x = 530,643.81
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.