Finding the Fourth Proportional to 478,980.18, 660,965.49 and 297,687.45
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Solution
The fourth proportional to 478,980.18, 660,965.49 and 297,687.45 is: 410,791.80
Step by Step Solution
- Step 1: Write the proportion equation
478,980.18 : 660,965.49 = 297,687.45 : x - Step 2: Convert to fraction form
478,980.18/660,965.49 = 297,687.45/x - Step 3: Cross multiply
478,980.18x = 660,965.49 × 297,687.45 - Step 4: Simplify right side
478,980.18x = 196,761,131,256.10 - Step 5: Solve for x
x = 196,761,131,256.10/478,980.18 - Step 6: Final answer
x = 410,791.80
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.