Finding the Fourth Proportional to 628,554.24, 868,419.63 and 438,416.46
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Solution
The fourth proportional to 628,554.24, 868,419.63 and 438,416.46 is: 605,722.52
Step by Step Solution
- Step 1: Write the proportion equation
628,554.24 : 868,419.63 = 438,416.46 : x - Step 2: Convert to fraction form
628,554.24/868,419.63 = 438,416.46/x - Step 3: Cross multiply
628,554.24x = 868,419.63 × 438,416.46 - Step 4: Simplify right side
628,554.24x = 380,729,459,979.11 - Step 5: Solve for x
x = 380,729,459,979.11/628,554.24 - Step 6: Final answer
x = 605,722.52
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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.