Finding the Fourth Proportional to 918,055.05, 1,266,929.14 and 504,630.12
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Solution
The fourth proportional to 918,055.05, 1,266,929.14 and 504,630.12 is: 696,396.81
Step by Step Solution
- Step 1: Write the proportion equation
918,055.05 : 1,266,929.14 = 504,630.12 : x - Step 2: Convert to fraction form
918,055.05/1,266,929.14 = 504,630.12/x - Step 3: Cross multiply
918,055.05x = 1,266,929.14 × 504,630.12 - Step 4: Simplify right side
918,055.05x = 639,330,603,949.70 - Step 5: Solve for x
x = 639,330,603,949.70/918,055.05 - Step 6: Final answer
x = 696,396.81
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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.