Finding the Fourth Proportional to 877,778.08, 1,316,712.66 and 278,786.12
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Solution
The fourth proportional to 877,778.08, 1,316,712.66 and 278,786.12 is: 418,193.64
Step by Step Solution
- Step 1: Write the proportion equation
877,778.08 : 1,316,712.66 = 278,786.12 : x - Step 2: Convert to fraction form
877,778.08/1,316,712.66 = 278,786.12/x - Step 3: Cross multiply
877,778.08x = 1,316,712.66 × 278,786.12 - Step 4: Simplify right side
877,778.08x = 367,081,213,636.28 - Step 5: Solve for x
x = 367,081,213,636.28/877,778.08 - Step 6: Final answer
x = 418,193.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.