Finding the Fourth Proportional to 919,126.13, 1,268,394.05 and 516,718.13
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Solution
The fourth proportional to 919,126.13, 1,268,394.05 and 516,718.13 is: 713,071.01
Step by Step Solution
- Step 1: Write the proportion equation
919,126.13 : 1,268,394.05 = 516,718.13 : x - Step 2: Convert to fraction form
919,126.13/1,268,394.05 = 516,718.13/x - Step 3: Cross multiply
919,126.13x = 1,268,394.05 × 516,718.13 - Step 4: Simplify right side
919,126.13x = 655,402,196,568.95 - Step 5: Solve for x
x = 655,402,196,568.95/919,126.13 - Step 6: Final answer
x = 713,071.01
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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.