Finding the Fourth Proportional to 520,242.18, 780,425.74 and 183,213.12
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Solution
The fourth proportional to 520,242.18, 780,425.74 and 183,213.12 is: 274,841.68
Step by Step Solution
- Step 1: Write the proportion equation
520,242.18 : 780,425.74 = 183,213.12 : x - Step 2: Convert to fraction form
520,242.18/780,425.74 = 183,213.12/x - Step 3: Cross multiply
520,242.18x = 780,425.74 × 183,213.12 - Step 4: Simplify right side
520,242.18x = 142,984,234,753.71 - Step 5: Solve for x
x = 142,984,234,753.71/520,242.18 - Step 6: Final answer
x = 274,841.68
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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.