Finding the Fourth Proportional to 812,326.92, 1,121,129.16 and 468,095.84
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Solution
The fourth proportional to 812,326.92, 1,121,129.16 and 468,095.84 is: 646,040.26
Step by Step Solution
- Step 1: Write the proportion equation
812,326.92 : 1,121,129.16 = 468,095.84 : x - Step 2: Convert to fraction form
812,326.92/1,121,129.16 = 468,095.84/x - Step 3: Cross multiply
812,326.92x = 1,121,129.16 × 468,095.84 - Step 4: Simplify right side
812,326.92x = 524,795,895,898.69 - Step 5: Solve for x
x = 524,795,895,898.69/812,326.92 - Step 6: Final answer
x = 646,040.26
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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.