Finding the Fourth Proportional to 754,013.36, 1,040,539.56 and 414,483.68
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Solution
The fourth proportional to 754,013.36, 1,040,539.56 and 414,483.68 is: 571,988.10
Step by Step Solution
- Step 1: Write the proportion equation
754,013.36 : 1,040,539.56 = 414,483.68 : x - Step 2: Convert to fraction form
754,013.36/1,040,539.56 = 414,483.68/x - Step 3: Cross multiply
754,013.36x = 1,040,539.56 × 414,483.68 - Step 4: Simplify right side
754,013.36x = 431,286,666,014.38 - Step 5: Solve for x
x = 431,286,666,014.38/754,013.36 - Step 6: Final answer
x = 571,988.10
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1.5x scale
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.