Finding the Fourth Proportional to 931,336.91, 1,284,287.98 and 778,317.98
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Solution
The fourth proportional to 931,336.91, 1,284,287.98 and 778,317.98 is: 1,073,279.09
Step by Step Solution
- Step 1: Write the proportion equation
931,336.91 : 1,284,287.98 = 778,317.98 : x - Step 2: Convert to fraction form
931,336.91/1,284,287.98 = 778,317.98/x - Step 3: Cross multiply
931,336.91x = 1,284,287.98 × 778,317.98 - Step 4: Simplify right side
931,336.91x = 999,584,427,596.81 - Step 5: Solve for x
x = 999,584,427,596.81/931,336.91 - Step 6: Final answer
x = 1,073,279.09
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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.