Finding the Fourth Proportional to 779,310.40, 1,071,319.99 and 670,012.09
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Solution
The fourth proportional to 779,310.40, 1,071,319.99 and 670,012.09 is: 921,067.33
Step by Step Solution
- Step 1: Write the proportion equation
779,310.40 : 1,071,319.99 = 670,012.09 : x - Step 2: Convert to fraction form
779,310.40/1,071,319.99 = 670,012.09/x - Step 3: Cross multiply
779,310.40x = 1,071,319.99 × 670,012.09 - Step 4: Simplify right side
779,310.40x = 717,797,345,558.68 - Step 5: Solve for x
x = 717,797,345,558.68/779,310.40 - Step 6: Final answer
x = 921,067.33
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.