Finding the Fourth Proportional to 1,539,687.49, 2,309,382.79 and 474,443.53
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Solution
The fourth proportional to 1,539,687.49, 2,309,382.79 and 474,443.53 is: 711,619.55
Step by Step Solution
- Step 1: Write the proportion equation
1,539,687.49 : 2,309,382.79 = 474,443.53 : x - Step 2: Convert to fraction form
1,539,687.49/2,309,382.79 = 474,443.53/x - Step 3: Cross multiply
1,539,687.49x = 2,309,382.79 × 474,443.53 - Step 4: Simplify right side
1,539,687.49x = 1,095,671,723,008.85 - Step 5: Solve for x
x = 1,095,671,723,008.85/1,539,687.49 - Step 6: Final answer
x = 711,619.55
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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.