Finding the Fourth Proportional to 877,564.10, 1,316,346.15 and 212,716.10
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Solution
The fourth proportional to 877,564.10, 1,316,346.15 and 212,716.10 is: 319,074.15
Step by Step Solution
- Step 1: Write the proportion equation
877,564.10 : 1,316,346.15 = 212,716.10 : x - Step 2: Convert to fraction form
877,564.10/1,316,346.15 = 212,716.10/x - Step 3: Cross multiply
877,564.10x = 1,316,346.15 × 212,716.10 - Step 4: Simplify right side
877,564.10x = 280,008,019,278.02 - Step 5: Solve for x
x = 280,008,019,278.02/877,564.10 - Step 6: Final answer
x = 319,074.15
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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.