Finding the Fourth Proportional to 1,079,090.16, 1,489,137.12 and 589,057.68
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Solution
The fourth proportional to 1,079,090.16, 1,489,137.12 and 589,057.68 is: 812,895.61
Step by Step Solution
- Step 1: Write the proportion equation
1,079,090.16 : 1,489,137.12 = 589,057.68 : x - Step 2: Convert to fraction form
1,079,090.16/1,489,137.12 = 589,057.68/x - Step 3: Cross multiply
1,079,090.16x = 1,489,137.12 × 589,057.68 - Step 4: Simplify right side
1,079,090.16x = 877,187,657,109.08 - Step 5: Solve for x
x = 877,187,657,109.08/1,079,090.16 - Step 6: Final answer
x = 812,895.61
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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.