Finding the Fourth Proportional to 709,770.18, 979,424.01 and 403,765.14
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Solution
The fourth proportional to 709,770.18, 979,424.01 and 403,765.14 is: 557,162.42
Step by Step Solution
- Step 1: Write the proportion equation
709,770.18 : 979,424.01 = 403,765.14 : x - Step 2: Convert to fraction form
709,770.18/979,424.01 = 403,765.14/x - Step 3: Cross multiply
709,770.18x = 979,424.01 × 403,765.14 - Step 4: Simplify right side
709,770.18x = 395,457,272,517.01 - Step 5: Solve for x
x = 395,457,272,517.01/709,770.18 - Step 6: Final answer
x = 557,162.42
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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.