Finding the Fourth Proportional to 810,775.42, 1,118,883.70 and 471,243.66
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Solution
The fourth proportional to 810,775.42, 1,118,883.70 and 471,243.66 is: 650,324.17
Step by Step Solution
- Step 1: Write the proportion equation
810,775.42 : 1,118,883.70 = 471,243.66 : x - Step 2: Convert to fraction form
810,775.42/1,118,883.70 = 471,243.66/x - Step 3: Cross multiply
810,775.42x = 1,118,883.70 × 471,243.66 - Step 4: Simplify right side
810,775.42x = 527,266,849,902.34 - Step 5: Solve for x
x = 527,266,849,902.34/810,775.42 - Step 6: Final answer
x = 650,324.17
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1.5x scale
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.