Finding the Fourth Proportional to 790,441.74, 1,090,809.18 and 427,868.53
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Solution
The fourth proportional to 790,441.74, 1,090,809.18 and 427,868.53 is: 590,458.34
Step by Step Solution
- Step 1: Write the proportion equation
790,441.74 : 1,090,809.18 = 427,868.53 : x - Step 2: Convert to fraction form
790,441.74/1,090,809.18 = 427,868.53/x - Step 3: Cross multiply
790,441.74x = 1,090,809.18 × 427,868.53 - Step 4: Simplify right side
790,441.74x = 466,722,917,630.08 - Step 5: Solve for x
x = 466,722,917,630.08/790,441.74 - Step 6: Final answer
x = 590,458.34
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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.