Finding the Fourth Proportional to 667,686.99, 921,446.99 and 377,291.16
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Solution
The fourth proportional to 667,686.99, 921,446.99 and 377,291.16 is: 520,683.80
Step by Step Solution
- Step 1: Write the proportion equation
667,686.99 : 921,446.99 = 377,291.16 : x - Step 2: Convert to fraction form
667,686.99/921,446.99 = 377,291.16/x - Step 3: Cross multiply
667,686.99x = 921,446.99 × 377,291.16 - Step 4: Simplify right side
667,686.99x = 347,653,801,849.15 - Step 5: Solve for x
x = 347,653,801,849.15/667,686.99 - Step 6: Final answer
x = 520,683.80
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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.