Finding the Fourth Proportional to 507,316.23, 699,759.21 and 326,257.20
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Solution
The fourth proportional to 507,316.23, 699,759.21 and 326,257.20 is: 450,018.09
Step by Step Solution
- Step 1: Write the proportion equation
507,316.23 : 699,759.21 = 326,257.20 : x - Step 2: Convert to fraction form
507,316.23/699,759.21 = 326,257.20/x - Step 3: Cross multiply
507,316.23x = 699,759.21 × 326,257.20 - Step 4: Simplify right side
507,316.23x = 228,301,480,528.81 - Step 5: Solve for x
x = 228,301,480,528.81/507,316.23 - Step 6: Final answer
x = 450,018.09
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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.