Finding the Fourth Proportional to 812,724.24, 1,121,316.84 and 525,789.84
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Solution
The fourth proportional to 812,724.24, 1,121,316.84 and 525,789.84 is: 725,433.02
Step by Step Solution
- Step 1: Write the proportion equation
812,724.24 : 1,121,316.84 = 525,789.84 : x - Step 2: Convert to fraction form
812,724.24/1,121,316.84 = 525,789.84/x - Step 3: Cross multiply
812,724.24x = 1,121,316.84 × 525,789.84 - Step 4: Simplify right side
812,724.24x = 589,577,001,892.91 - Step 5: Solve for x
x = 589,577,001,892.91/812,724.24 - Step 6: Final answer
x = 725,433.02
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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.