Finding the Fourth Proportional to 788,320.11, 1,087,881.49 and 425,744.05
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Solution
The fourth proportional to 788,320.11, 1,087,881.49 and 425,744.05 is: 587,526.65
Step by Step Solution
- Step 1: Write the proportion equation
788,320.11 : 1,087,881.49 = 425,744.05 : x - Step 2: Convert to fraction form
788,320.11/1,087,881.49 = 425,744.05/x - Step 3: Cross multiply
788,320.11x = 1,087,881.49 × 425,744.05 - Step 4: Simplify right side
788,320.11x = 463,159,071,472.63 - Step 5: Solve for x
x = 463,159,071,472.63/788,320.11 - Step 6: Final answer
x = 587,526.65
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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.