Finding the Fourth Proportional to 1,368,435.09, 1,888,407.15 and 756,572.09
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Solution
The fourth proportional to 1,368,435.09, 1,888,407.15 and 756,572.09 is: 1,044,051.09
Step by Step Solution
- Step 1: Write the proportion equation
1,368,435.09 : 1,888,407.15 = 756,572.09 : x - Step 2: Convert to fraction form
1,368,435.09/1,888,407.15 = 756,572.09/x - Step 3: Cross multiply
1,368,435.09x = 1,888,407.15 × 756,572.09 - Step 4: Simplify right side
1,368,435.09x = 1,428,716,144,246.44 - Step 5: Solve for x
x = 1,428,716,144,246.44/1,368,435.09 - Step 6: Final answer
x = 1,044,051.09
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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.