Finding the Fourth Proportional to 691,132.23, 953,646.84 and 385,141.54
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Solution
The fourth proportional to 691,132.23, 953,646.84 and 385,141.54 is: 531,430.88
Step by Step Solution
- Step 1: Write the proportion equation
691,132.23 : 953,646.84 = 385,141.54 : x - Step 2: Convert to fraction form
691,132.23/953,646.84 = 385,141.54/x - Step 3: Cross multiply
691,132.23x = 953,646.84 × 385,141.54 - Step 4: Simplify right side
691,132.23x = 367,289,010,189.62 - Step 5: Solve for x
x = 367,289,010,189.62/691,132.23 - Step 6: Final answer
x = 531,430.88
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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.