Finding the Fourth Proportional to 574,539.63, 792,889.20 and 319,890.75
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Solution
The fourth proportional to 574,539.63, 792,889.20 and 319,890.75 is: 441,462.88
Step by Step Solution
- Step 1: Write the proportion equation
574,539.63 : 792,889.20 = 319,890.75 : x - Step 2: Convert to fraction form
574,539.63/792,889.20 = 319,890.75/x - Step 3: Cross multiply
574,539.63x = 792,889.20 × 319,890.75 - Step 4: Simplify right side
574,539.63x = 253,637,920,854.90 - Step 5: Solve for x
x = 253,637,920,854.90/574,539.63 - Step 6: Final answer
x = 441,462.88
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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.