Finding the Fourth Proportional to 636,791.88, 878,692.74 and 430,508.85
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Solution
The fourth proportional to 636,791.88, 878,692.74 and 430,508.85 is: 594,048.09
Step by Step Solution
- Step 1: Write the proportion equation
636,791.88 : 878,692.74 = 430,508.85 : x - Step 2: Convert to fraction form
636,791.88/878,692.74 = 430,508.85/x - Step 3: Cross multiply
636,791.88x = 878,692.74 × 430,508.85 - Step 4: Simplify right side
636,791.88x = 378,285,001,000.75 - Step 5: Solve for x
x = 378,285,001,000.75/636,791.88 - Step 6: Final answer
x = 594,048.09
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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.