Finding the Fourth Proportional to 918,676.19, 1,267,707.32 and 505,242.08
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Solution
The fourth proportional to 918,676.19, 1,267,707.32 and 505,242.08 is: 697,197.86
Step by Step Solution
- Step 1: Write the proportion equation
918,676.19 : 1,267,707.32 = 505,242.08 : x - Step 2: Convert to fraction form
918,676.19/1,267,707.32 = 505,242.08/x - Step 3: Cross multiply
918,676.19x = 1,267,707.32 × 505,242.08 - Step 4: Simplify right side
918,676.19x = 640,499,074,323.28 - Step 5: Solve for x
x = 640,499,074,323.28/918,676.19 - Step 6: Final answer
x = 697,197.86
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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.