Finding the Fourth Proportional to 414,278.75, 618,393.74 and 355,492.19
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Solution
The fourth proportional to 414,278.75, 618,393.74 and 355,492.19 is: 530,643.06
Step by Step Solution
- Step 1: Write the proportion equation
414,278.75 : 618,393.74 = 355,492.19 : x - Step 2: Convert to fraction form
414,278.75/618,393.74 = 355,492.19/x - Step 3: Cross multiply
414,278.75x = 618,393.74 × 355,492.19 - Step 4: Simplify right side
414,278.75x = 219,834,146,683.06 - Step 5: Solve for x
x = 219,834,146,683.06/414,278.75 - Step 6: Final answer
x = 530,643.06
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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.