Finding the Fourth Proportional to 1,172,706.42, 1,618,337.97 and 636,162.42
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Solution
The fourth proportional to 1,172,706.42, 1,618,337.97 and 636,162.42 is: 877,905.83
Step by Step Solution
- Step 1: Write the proportion equation
1,172,706.42 : 1,618,337.97 = 636,162.42 : x - Step 2: Convert to fraction form
1,172,706.42/1,618,337.97 = 636,162.42/x - Step 3: Cross multiply
1,172,706.42x = 1,618,337.97 × 636,162.42 - Step 4: Simplify right side
1,172,706.42x = 1,029,525,799,373.09 - Step 5: Solve for x
x = 1,029,525,799,373.09/1,172,706.42 - Step 6: Final answer
x = 877,905.83
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1.5x scale
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.