Finding the Fourth Proportional to 819,560.88, 1,131,143.40 and 475,616.88
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Solution
The fourth proportional to 819,560.88, 1,131,143.40 and 475,616.88 is: 656,437.99
Step by Step Solution
- Step 1: Write the proportion equation
819,560.88 : 1,131,143.40 = 475,616.88 : x - Step 2: Convert to fraction form
819,560.88/1,131,143.40 = 475,616.88/x - Step 3: Cross multiply
819,560.88x = 1,131,143.40 × 475,616.88 - Step 4: Simplify right side
819,560.88x = 537,990,894,740.59 - Step 5: Solve for x
x = 537,990,894,740.59/819,560.88 - Step 6: Final answer
x = 656,437.99
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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.