Finding the Fourth Proportional to 885,655.20, 1,328,482.80 and 511,240.80
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Solution
The fourth proportional to 885,655.20, 1,328,482.80 and 511,240.80 is: 766,861.20
Step by Step Solution
- Step 1: Write the proportion equation
885,655.20 : 1,328,482.80 = 511,240.80 : x - Step 2: Convert to fraction form
885,655.20/1,328,482.80 = 511,240.80/x - Step 3: Cross multiply
885,655.20x = 1,328,482.80 × 511,240.80 - Step 4: Simplify right side
885,655.20x = 679,174,609,458.24 - Step 5: Solve for x
x = 679,174,609,458.24/885,655.20 - Step 6: Final answer
x = 766,861.20
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1.5x scale
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.