Finding the Fourth Proportional to 786,557.77, 1,085,532.96 and 480,813.12
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Solution
The fourth proportional to 786,557.77, 1,085,532.96 and 480,813.12 is: 663,572.99
Step by Step Solution
- Step 1: Write the proportion equation
786,557.77 : 1,085,532.96 = 480,813.12 : x - Step 2: Convert to fraction form
786,557.77/1,085,532.96 = 480,813.12/x - Step 3: Cross multiply
786,557.77x = 1,085,532.96 × 480,813.12 - Step 4: Simplify right side
786,557.77x = 521,938,489,360.44 - Step 5: Solve for x
x = 521,938,489,360.44/786,557.77 - Step 6: Final answer
x = 663,572.99
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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.