Finding the Fourth Proportional to 478,972.05, 660,957.18 and 272,235.02
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Solution
The fourth proportional to 478,972.05, 660,957.18 and 272,235.02 is: 375,670.55
Step by Step Solution
- Step 1: Write the proportion equation
478,972.05 : 660,957.18 = 272,235.02 : x - Step 2: Convert to fraction form
478,972.05/660,957.18 = 272,235.02/x - Step 3: Cross multiply
478,972.05x = 660,957.18 × 272,235.02 - Step 4: Simplify right side
478,972.05x = 179,935,691,116.44 - Step 5: Solve for x
x = 179,935,691,116.44/478,972.05 - Step 6: Final answer
x = 375,670.55
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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.