Finding the Fourth Proportional to 781,449.36, 1,165,151.94 and 714,723.12
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Solution
The fourth proportional to 781,449.36, 1,165,151.94 and 714,723.12 is: 1,065,662.18
Step by Step Solution
- Step 1: Write the proportion equation
781,449.36 : 1,165,151.94 = 714,723.12 : x - Step 2: Convert to fraction form
781,449.36/1,165,151.94 = 714,723.12/x - Step 3: Cross multiply
781,449.36x = 1,165,151.94 × 714,723.12 - Step 4: Simplify right side
781,449.36x = 832,761,029,830.85 - Step 5: Solve for x
x = 832,761,029,830.85/781,449.36 - Step 6: Final answer
x = 1,065,662.18
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.