Finding the Fourth Proportional to 861,966.81, 1,190,266.38 and 540,229.95
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Solution
The fourth proportional to 861,966.81, 1,190,266.38 and 540,229.95 is: 745,988.75
Step by Step Solution
- Step 1: Write the proportion equation
861,966.81 : 1,190,266.38 = 540,229.95 : x - Step 2: Convert to fraction form
861,966.81/1,190,266.38 = 540,229.95/x - Step 3: Cross multiply
861,966.81x = 1,190,266.38 × 540,229.95 - Step 4: Simplify right side
861,966.81x = 643,017,546,954.08 - Step 5: Solve for x
x = 643,017,546,954.08/861,966.81 - Step 6: Final answer
x = 745,988.75
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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.