Finding the Fourth Proportional to 1,186,309.04, 1,637,107.98 and 642,445.70
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Solution
The fourth proportional to 1,186,309.04, 1,637,107.98 and 642,445.70 is: 886,575.88
Step by Step Solution
- Step 1: Write the proportion equation
1,186,309.04 : 1,637,107.98 = 642,445.70 : x - Step 2: Convert to fraction form
1,186,309.04/1,637,107.98 = 642,445.70/x - Step 3: Cross multiply
1,186,309.04x = 1,637,107.98 × 642,445.70 - Step 4: Simplify right side
1,186,309.04x = 1,051,752,982,186.69 - Step 5: Solve for x
x = 1,051,752,982,186.69/1,186,309.04 - Step 6: Final answer
x = 886,575.88
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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.