Finding the Fourth Proportional to 649,534.18, 896,376.05 and 355,201.20
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Solution
The fourth proportional to 649,534.18, 896,376.05 and 355,201.20 is: 490,187.98
Step by Step Solution
- Step 1: Write the proportion equation
649,534.18 : 896,376.05 = 355,201.20 : x - Step 2: Convert to fraction form
649,534.18/896,376.05 = 355,201.20/x - Step 3: Cross multiply
649,534.18x = 896,376.05 × 355,201.20 - Step 4: Simplify right side
649,534.18x = 318,393,849,964.20 - Step 5: Solve for x
x = 318,393,849,964.20/649,534.18 - Step 6: Final answer
x = 490,187.98
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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.