Finding the Fourth Proportional to 1,186,306.04, 1,637,103.84 and 642,442.70
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Solution
The fourth proportional to 1,186,306.04, 1,637,103.84 and 642,442.70 is: 886,571.74
Step by Step Solution
- Step 1: Write the proportion equation
1,186,306.04 : 1,637,103.84 = 642,442.70 : x - Step 2: Convert to fraction form
1,186,306.04/1,637,103.84 = 642,442.70/x - Step 3: Cross multiply
1,186,306.04x = 1,637,103.84 × 642,442.70 - Step 4: Simplify right side
1,186,306.04x = 1,051,745,411,149.97 - Step 5: Solve for x
x = 1,051,745,411,149.97/1,186,306.04 - Step 6: Final answer
x = 886,571.74
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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.