Finding the Fourth Proportional to 754,013.13, 1,040,511.74 and 414,478.95
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Solution
The fourth proportional to 754,013.13, 1,040,511.74 and 414,478.95 is: 571,966.45
Step by Step Solution
- Step 1: Write the proportion equation
754,013.13 : 1,040,511.74 = 414,478.95 : x - Step 2: Convert to fraction form
754,013.13/1,040,511.74 = 414,478.95/x - Step 3: Cross multiply
754,013.13x = 1,040,511.74 × 414,478.95 - Step 4: Simplify right side
754,013.13x = 431,270,211,385.48 - Step 5: Solve for x
x = 431,270,211,385.48/754,013.13 - Step 6: Final answer
x = 571,966.45
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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.