Finding the Fourth Proportional to 486,685.42, 671,957.94 and 315,018.88
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Solution
The fourth proportional to 486,685.42, 671,957.94 and 315,018.88 is: 434,940.99
Step by Step Solution
- Step 1: Write the proportion equation
486,685.42 : 671,957.94 = 315,018.88 : x - Step 2: Convert to fraction form
486,685.42/671,957.94 = 315,018.88/x - Step 3: Cross multiply
486,685.42x = 671,957.94 × 315,018.88 - Step 4: Simplify right side
486,685.42x = 211,679,437,665.91 - Step 5: Solve for x
x = 211,679,437,665.91/486,685.42 - Step 6: Final answer
x = 434,940.99
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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.