Finding the Fourth Proportional to 671,396.36, 926,722.62 and 438,857.07
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Solution
The fourth proportional to 671,396.36, 926,722.62 and 438,857.07 is: 605,750.64
Step by Step Solution
- Step 1: Write the proportion equation
671,396.36 : 926,722.62 = 438,857.07 : x - Step 2: Convert to fraction form
671,396.36/926,722.62 = 438,857.07/x - Step 3: Cross multiply
671,396.36x = 926,722.62 × 438,857.07 - Step 4: Simplify right side
671,396.36x = 406,698,773,715.92 - Step 5: Solve for x
x = 406,698,773,715.92/671,396.36 - Step 6: Final answer
x = 605,750.64
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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.