Finding the Fourth Proportional to 916,587.71, 1,264,315.68 and 543,786.70
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Solution
The fourth proportional to 916,587.71, 1,264,315.68 and 543,786.70 is: 750,084.29
Step by Step Solution
- Step 1: Write the proportion equation
916,587.71 : 1,264,315.68 = 543,786.70 : x - Step 2: Convert to fraction form
916,587.71/1,264,315.68 = 543,786.70/x - Step 3: Cross multiply
916,587.71x = 1,264,315.68 × 543,786.70 - Step 4: Simplify right side
916,587.71x = 687,518,045,063.88 - Step 5: Solve for x
x = 687,518,045,063.88/916,587.71 - Step 6: Final answer
x = 750,084.29
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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.