Finding the Fourth Proportional to 414,279.75, 618,395.23 and 355,493.19
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Solution
The fourth proportional to 414,279.75, 618,395.23 and 355,493.19 is: 530,644.55
Step by Step Solution
- Step 1: Write the proportion equation
414,279.75 : 618,395.23 = 355,493.19 : x - Step 2: Convert to fraction form
414,279.75/618,395.23 = 355,493.19/x - Step 3: Cross multiply
414,279.75x = 618,395.23 × 355,493.19 - Step 4: Simplify right side
414,279.75x = 219,835,292,993.48 - Step 5: Solve for x
x = 219,835,292,993.48/414,279.75 - Step 6: Final answer
x = 530,644.55
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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.