Finding the Fourth Proportional to 509,692.19, 703,393.29 and 280,266.95
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Solution
The fourth proportional to 509,692.19, 703,393.29 and 280,266.95 is: 386,778.33
Step by Step Solution
- Step 1: Write the proportion equation
509,692.19 : 703,393.29 = 280,266.95 : x - Step 2: Convert to fraction form
509,692.19/703,393.29 = 280,266.95/x - Step 3: Cross multiply
509,692.19x = 703,393.29 × 280,266.95 - Step 4: Simplify right side
509,692.19x = 197,137,893,797.25 - Step 5: Solve for x
x = 197,137,893,797.25/509,692.19 - Step 6: Final answer
x = 386,778.33
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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.