Finding the Fourth Proportional to 821,816.75, 1,226,706.95 and 724,746.53
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Solution
The fourth proportional to 821,816.75, 1,226,706.95 and 724,746.53 is: 1,081,812.46
Step by Step Solution
- Step 1: Write the proportion equation
821,816.75 : 1,226,706.95 = 724,746.53 : x - Step 2: Convert to fraction form
821,816.75/1,226,706.95 = 724,746.53/x - Step 3: Cross multiply
821,816.75x = 1,226,706.95 × 724,746.53 - Step 4: Simplify right side
821,816.75x = 889,051,595,582.12 - Step 5: Solve for x
x = 889,051,595,582.12/821,816.75 - Step 6: Final answer
x = 1,081,812.46
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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.