Finding the Fourth Proportional to 1,387,891.80, 2,082,615.30 and 589,037.40
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Solution
The fourth proportional to 1,387,891.80, 2,082,615.30 and 589,037.40 is: 883,886.12
Step by Step Solution
- Step 1: Write the proportion equation
1,387,891.80 : 2,082,615.30 = 589,037.40 : x - Step 2: Convert to fraction form
1,387,891.80/2,082,615.30 = 589,037.40/x - Step 3: Cross multiply
1,387,891.80x = 2,082,615.30 × 589,037.40 - Step 4: Simplify right side
1,387,891.80x = 1,226,738,301,512.22 - Step 5: Solve for x
x = 1,226,738,301,512.22/1,387,891.80 - Step 6: Final answer
x = 883,886.12
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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.