Finding the Fourth Proportional to 425,623.97, 638,529.36 and 126,127.99
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Solution
The fourth proportional to 425,623.97, 638,529.36 and 126,127.99 is: 189,219.66
Step by Step Solution
- Step 1: Write the proportion equation
425,623.97 : 638,529.36 = 126,127.99 : x - Step 2: Convert to fraction form
425,623.97/638,529.36 = 126,127.99/x - Step 3: Cross multiply
425,623.97x = 638,529.36 × 126,127.99 - Step 4: Simplify right side
425,623.97x = 80,536,424,732.79 - Step 5: Solve for x
x = 80,536,424,732.79/425,623.97 - Step 6: Final answer
x = 189,219.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.