Finding the Fourth Proportional to 811,397.96, 1,119,715.35 and 448,821.53
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Solution
The fourth proportional to 811,397.96, 1,119,715.35 and 448,821.53 is: 619,366.06
Step by Step Solution
- Step 1: Write the proportion equation
811,397.96 : 1,119,715.35 = 448,821.53 : x - Step 2: Convert to fraction form
811,397.96/1,119,715.35 = 448,821.53/x - Step 3: Cross multiply
811,397.96x = 1,119,715.35 × 448,821.53 - Step 4: Simplify right side
811,397.96x = 502,552,350,952.91 - Step 5: Solve for x
x = 502,552,350,952.91/811,397.96 - Step 6: Final answer
x = 619,366.06
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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.