Finding the Fourth Proportional to 649,537.18, 896,380.19 and 355,204.20
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Solution
The fourth proportional to 649,537.18, 896,380.19 and 355,204.20 is: 490,192.12
Step by Step Solution
- Step 1: Write the proportion equation
649,537.18 : 896,380.19 = 355,204.20 : x - Step 2: Convert to fraction form
649,537.18/896,380.19 = 355,204.20/x - Step 3: Cross multiply
649,537.18x = 896,380.19 × 355,204.20 - Step 4: Simplify right side
649,537.18x = 318,398,008,284.80 - Step 5: Solve for x
x = 318,398,008,284.80/649,537.18 - Step 6: Final answer
x = 490,192.12
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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.