Finding the Fourth Proportional to 665,160.54, 917,919.99 and 363,356.70
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Solution
The fourth proportional to 665,160.54, 917,919.99 and 363,356.70 is: 501,431.40
Step by Step Solution
- Step 1: Write the proportion equation
665,160.54 : 917,919.99 = 363,356.70 : x - Step 2: Convert to fraction form
665,160.54/917,919.99 = 363,356.70/x - Step 3: Cross multiply
665,160.54x = 917,919.99 × 363,356.70 - Step 4: Simplify right side
665,160.54x = 333,532,378,430.43 - Step 5: Solve for x
x = 333,532,378,430.43/665,160.54 - Step 6: Final answer
x = 501,431.40
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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.