Finding the Fourth Proportional to 1,547,711.09, 2,135,841.30 and 868,647.59
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Solution
The fourth proportional to 1,547,711.09, 2,135,841.30 and 868,647.59 is: 1,198,733.67
Step by Step Solution
- Step 1: Write the proportion equation
1,547,711.09 : 2,135,841.30 = 868,647.59 : x - Step 2: Convert to fraction form
1,547,711.09/2,135,841.30 = 868,647.59/x - Step 3: Cross multiply
1,547,711.09x = 2,135,841.30 × 868,647.59 - Step 4: Simplify right side
1,547,711.09x = 1,855,293,391,633.60 - Step 5: Solve for x
x = 1,855,293,391,633.60/1,547,711.09 - Step 6: Final answer
x = 1,198,733.67
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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.