Finding the Fourth Proportional to 810,743.40, 1,119,141.36 and 725,712.84
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Solution
The fourth proportional to 810,743.40, 1,119,141.36 and 725,712.84 is: 1,001,766.10
Step by Step Solution
- Step 1: Write the proportion equation
810,743.40 : 1,119,141.36 = 725,712.84 : x - Step 2: Convert to fraction form
810,743.40/1,119,141.36 = 725,712.84/x - Step 3: Cross multiply
810,743.40x = 1,119,141.36 × 725,712.84 - Step 4: Simplify right side
810,743.40x = 812,175,254,727.06 - Step 5: Solve for x
x = 812,175,254,727.06/810,743.40 - Step 6: Final answer
x = 1,001,766.10
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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.