Finding the Fourth Proportional to 939,310.71, 1,296,251.29 and 509,590.84
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Solution
The fourth proportional to 939,310.71, 1,296,251.29 and 509,590.84 is: 703,236.72
Step by Step Solution
- Step 1: Write the proportion equation
939,310.71 : 1,296,251.29 = 509,590.84 : x - Step 2: Convert to fraction form
939,310.71/1,296,251.29 = 509,590.84/x - Step 3: Cross multiply
939,310.71x = 1,296,251.29 × 509,590.84 - Step 4: Simplify right side
939,310.71x = 660,557,779,207.58 - Step 5: Solve for x
x = 660,557,779,207.58/939,310.71 - Step 6: Final answer
x = 703,236.72
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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.