Finding the Fourth Proportional to 509,806.80, 703,531.08 and 283,438.80
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Solution
The fourth proportional to 509,806.80, 703,531.08 and 283,438.80 is: 391,144.26
Step by Step Solution
- Step 1: Write the proportion equation
509,806.80 : 703,531.08 = 283,438.80 : x - Step 2: Convert to fraction form
509,806.80/703,531.08 = 283,438.80/x - Step 3: Cross multiply
509,806.80x = 703,531.08 × 283,438.80 - Step 4: Simplify right side
509,806.80x = 199,408,005,077.90 - Step 5: Solve for x
x = 199,408,005,077.90/509,806.80 - Step 6: Final answer
x = 391,144.26
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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.