Finding the Fourth Proportional to 507,153.79, 699,872.49 and 316,167.94
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Solution
The fourth proportional to 507,153.79, 699,872.49 and 316,167.94 is: 436,311.92
Step by Step Solution
- Step 1: Write the proportion equation
507,153.79 : 699,872.49 = 316,167.94 : x - Step 2: Convert to fraction form
507,153.79/699,872.49 = 316,167.94/x - Step 3: Cross multiply
507,153.79x = 699,872.49 × 316,167.94 - Step 4: Simplify right side
507,153.79x = 221,277,243,425.97 - Step 5: Solve for x
x = 221,277,243,425.97/507,153.79 - Step 6: Final answer
x = 436,311.92
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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.