Finding the Fourth Proportional to 613,774.48, 920,071.21 and 314,396.05
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Solution
The fourth proportional to 613,774.48, 920,071.21 and 314,396.05 is: 471,291.60
Step by Step Solution
- Step 1: Write the proportion equation
613,774.48 : 920,071.21 = 314,396.05 : x - Step 2: Convert to fraction form
613,774.48/920,071.21 = 314,396.05/x - Step 3: Cross multiply
613,774.48x = 920,071.21 × 314,396.05 - Step 4: Simplify right side
613,774.48x = 289,266,754,142.72 - Step 5: Solve for x
x = 289,266,754,142.72/613,774.48 - Step 6: Final answer
x = 471,291.60
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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.