Finding the Fourth Proportional to 522,775.19, 721,426.42 and 290,199.62
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Solution
The fourth proportional to 522,775.19, 721,426.42 and 290,199.62 is: 400,473.62
Step by Step Solution
- Step 1: Write the proportion equation
522,775.19 : 721,426.42 = 290,199.62 : x - Step 2: Convert to fraction form
522,775.19/721,426.42 = 290,199.62/x - Step 3: Cross multiply
522,775.19x = 721,426.42 × 290,199.62 - Step 4: Simplify right side
522,775.19x = 209,357,672,941.96 - Step 5: Solve for x
x = 209,357,672,941.96/522,775.19 - Step 6: Final answer
x = 400,473.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.