Finding the Fourth Proportional to 1,295,678.38, 1,787,639.88 and 751,625.68
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Solution
The fourth proportional to 1,295,678.38, 1,787,639.88 and 751,625.68 is: 1,037,013.55
Step by Step Solution
- Step 1: Write the proportion equation
1,295,678.38 : 1,787,639.88 = 751,625.68 : x - Step 2: Convert to fraction form
1,295,678.38/1,787,639.88 = 751,625.68/x - Step 3: Cross multiply
1,295,678.38x = 1,787,639.88 × 751,625.68 - Step 4: Simplify right side
1,295,678.38x = 1,343,636,040,400.12 - Step 5: Solve for x
x = 1,343,636,040,400.12/1,295,678.38 - Step 6: Final answer
x = 1,037,013.55
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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.