Finding the Fourth Proportional to 855,120.12, 1,180,090.26 and 473,182.44
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Solution
The fourth proportional to 855,120.12, 1,180,090.26 and 473,182.44 is: 653,005.32
Step by Step Solution
- Step 1: Write the proportion equation
855,120.12 : 1,180,090.26 = 473,182.44 : x - Step 2: Convert to fraction form
855,120.12/1,180,090.26 = 473,182.44/x - Step 3: Cross multiply
855,120.12x = 1,180,090.26 × 473,182.44 - Step 4: Simplify right side
855,120.12x = 558,397,988,647.03 - Step 5: Solve for x
x = 558,397,988,647.03/855,120.12 - Step 6: Final answer
x = 653,005.32
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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.