Finding the Fourth Proportional to 665,115.40, 917,862.96 and 363,309.40
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Solution
The fourth proportional to 665,115.40, 917,862.96 and 363,309.40 is: 501,368.99
Step by Step Solution
- Step 1: Write the proportion equation
665,115.40 : 917,862.96 = 363,309.40 : x - Step 2: Convert to fraction form
665,115.40/917,862.96 = 363,309.40/x - Step 3: Cross multiply
665,115.40x = 917,862.96 × 363,309.40 - Step 4: Simplify right side
665,115.40x = 333,468,239,463.28 - Step 5: Solve for x
x = 333,468,239,463.28/665,115.40 - Step 6: Final answer
x = 501,368.99
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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.