Finding the Fourth Proportional to 877,697.18, 1,316,480.11 and 316,731.66
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Solution
The fourth proportional to 877,697.18, 1,316,480.11 and 316,731.66 is: 475,073.80
Step by Step Solution
- Step 1: Write the proportion equation
877,697.18 : 1,316,480.11 = 316,731.66 : x - Step 2: Convert to fraction form
877,697.18/1,316,480.11 = 316,731.66/x - Step 3: Cross multiply
877,697.18x = 1,316,480.11 × 316,731.66 - Step 4: Simplify right side
877,697.18x = 416,970,930,597.28 - Step 5: Solve for x
x = 416,970,930,597.28/877,697.18 - Step 6: Final answer
x = 475,073.80
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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.