Finding the Fourth Proportional to 811,256.80, 1,214,552.40 and 496,328.80
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Solution
The fourth proportional to 811,256.80, 1,214,552.40 and 496,328.80 is: 743,065.99
Step by Step Solution
- Step 1: Write the proportion equation
811,256.80 : 1,214,552.40 = 496,328.80 : x - Step 2: Convert to fraction form
811,256.80/1,214,552.40 = 496,328.80/x - Step 3: Cross multiply
811,256.80x = 1,214,552.40 × 496,328.80 - Step 4: Simplify right side
811,256.80x = 602,817,335,229.12 - Step 5: Solve for x
x = 602,817,335,229.12/811,256.80 - Step 6: Final answer
x = 743,065.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.