Finding the Fourth Proportional to 771,545.82, 1,064,487.18 and 499,821.99
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Solution
The fourth proportional to 771,545.82, 1,064,487.18 and 499,821.99 is: 689,594.95
Step by Step Solution
- Step 1: Write the proportion equation
771,545.82 : 1,064,487.18 = 499,821.99 : x - Step 2: Convert to fraction form
771,545.82/1,064,487.18 = 499,821.99/x - Step 3: Cross multiply
771,545.82x = 1,064,487.18 × 499,821.99 - Step 4: Simplify right side
771,545.82x = 532,054,100,637.09 - Step 5: Solve for x
x = 532,054,100,637.09/771,545.82 - Step 6: Final answer
x = 689,594.95
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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.