Finding the Fourth Proportional to 1,351,986.12, 1,866,210.48 and 836,134.92
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Solution
The fourth proportional to 1,351,986.12, 1,866,210.48 and 836,134.92 is: 1,154,156.63
Step by Step Solution
- Step 1: Write the proportion equation
1,351,986.12 : 1,866,210.48 = 836,134.92 : x - Step 2: Convert to fraction form
1,351,986.12/1,866,210.48 = 836,134.92/x - Step 3: Cross multiply
1,351,986.12x = 1,866,210.48 × 836,134.92 - Step 4: Simplify right side
1,351,986.12x = 1,560,403,750,397.96 - Step 5: Solve for x
x = 1,560,403,750,397.96/1,351,986.12 - Step 6: Final answer
x = 1,154,156.63
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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.