Finding the Fourth Proportional to 787,583.20, 1,181,374.80 and 226,617.70
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Solution
The fourth proportional to 787,583.20, 1,181,374.80 and 226,617.70 is: 339,926.55
Step by Step Solution
- Step 1: Write the proportion equation
787,583.20 : 1,181,374.80 = 226,617.70 : x - Step 2: Convert to fraction form
787,583.20/1,181,374.80 = 226,617.70/x - Step 3: Cross multiply
787,583.20x = 1,181,374.80 × 226,617.70 - Step 4: Simplify right side
787,583.20x = 267,720,440,013.96 - Step 5: Solve for x
x = 267,720,440,013.96/787,583.20 - Step 6: Final answer
x = 339,926.55
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1.5x scale
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.