Finding the Fourth Proportional to 509,692.29, 703,393.41 and 280,267.05
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Solution
The fourth proportional to 509,692.29, 703,393.41 and 280,267.05 is: 386,778.45
Step by Step Solution
- Step 1: Write the proportion equation
509,692.29 : 703,393.41 = 280,267.05 : x - Step 2: Convert to fraction form
509,692.29/703,393.41 = 280,267.05/x - Step 3: Cross multiply
509,692.29x = 703,393.41 × 280,267.05 - Step 4: Simplify right side
509,692.29x = 197,137,996,010.14 - Step 5: Solve for x
x = 197,137,996,010.14/509,692.29 - Step 6: Final answer
x = 386,778.45
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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.