Finding the Fourth Proportional to 1,368,549.90, 1,888,565.40 and 756,687.09
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Solution
The fourth proportional to 1,368,549.90, 1,888,565.40 and 756,687.09 is: 1,044,209.68
Step by Step Solution
- Step 1: Write the proportion equation
1,368,549.90 : 1,888,565.40 = 756,687.09 : x - Step 2: Convert to fraction form
1,368,549.90/1,888,565.40 = 756,687.09/x - Step 3: Cross multiply
1,368,549.90x = 1,888,565.40 × 756,687.09 - Step 4: Simplify right side
1,368,549.90x = 1,429,053,056,800.69 - Step 5: Solve for x
x = 1,429,053,056,800.69/1,368,549.90 - Step 6: Final answer
x = 1,044,209.68
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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.