Finding the Fourth Proportional to 865,862.13, 1,194,116.18 and 543,602.28
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Solution
The fourth proportional to 865,862.13, 1,194,116.18 and 543,602.28 is: 749,685.49
Step by Step Solution
- Step 1: Write the proportion equation
865,862.13 : 1,194,116.18 = 543,602.28 : x - Step 2: Convert to fraction form
865,862.13/1,194,116.18 = 543,602.28/x - Step 3: Cross multiply
865,862.13x = 1,194,116.18 × 543,602.28 - Step 4: Simplify right side
865,862.13x = 649,124,275,314.88 - Step 5: Solve for x
x = 649,124,275,314.88/865,862.13 - Step 6: Final answer
x = 749,685.49
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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.