Finding the Fourth Proportional to 760,419.36, 1,049,427.60 and 438,123.68
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Solution
The fourth proportional to 760,419.36, 1,049,427.60 and 438,123.68 is: 604,638.84
Step by Step Solution
- Step 1: Write the proportion equation
760,419.36 : 1,049,427.60 = 438,123.68 : x - Step 2: Convert to fraction form
760,419.36/1,049,427.60 = 438,123.68/x - Step 3: Cross multiply
760,419.36x = 1,049,427.60 × 438,123.68 - Step 4: Simplify right side
760,419.36x = 459,779,082,005.57 - Step 5: Solve for x
x = 459,779,082,005.57/760,419.36 - Step 6: Final answer
x = 604,638.84
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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.