Finding the Fourth Proportional to 432,589.67, 647,606.58 and 319,519.07
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Solution
The fourth proportional to 432,589.67, 647,606.58 and 319,519.07 is: 478,334.70
Step by Step Solution
- Step 1: Write the proportion equation
432,589.67 : 647,606.58 = 319,519.07 : x - Step 2: Convert to fraction form
432,589.67/647,606.58 = 319,519.07/x - Step 3: Cross multiply
432,589.67x = 647,606.58 × 319,519.07 - Step 4: Simplify right side
432,589.67x = 206,922,648,929.45 - Step 5: Solve for x
x = 206,922,648,929.45/432,589.67 - Step 6: Final answer
x = 478,334.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.