Finding the Fourth Proportional to 1,637,543.63, 2,455,977.12 and 439,181.07
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Solution
The fourth proportional to 1,637,543.63, 2,455,977.12 and 439,181.07 is: 658,680.87
Step by Step Solution
- Step 1: Write the proportion equation
1,637,543.63 : 2,455,977.12 = 439,181.07 : x - Step 2: Convert to fraction form
1,637,543.63/2,455,977.12 = 439,181.07/x - Step 3: Cross multiply
1,637,543.63x = 2,455,977.12 × 439,181.07 - Step 4: Simplify right side
1,637,543.63x = 1,078,618,659,457.12 - Step 5: Solve for x
x = 1,078,618,659,457.12/1,637,543.63 - Step 6: Final answer
x = 658,680.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.