Finding the Fourth Proportional to 1,547,863.72, 2,135,934.74 and 868,669
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Solution
The fourth proportional to 1,547,863.72, 2,135,934.74 and 868,669 is: 1,198,697.45
Step by Step Solution
- Step 1: Write the proportion equation
1,547,863.72 : 2,135,934.74 = 868,669 : x - Step 2: Convert to fraction form
1,547,863.72/2,135,934.74 = 868,669/x - Step 3: Cross multiply
1,547,863.72x = 2,135,934.74 × 868,669 - Step 4: Simplify right side
1,547,863.72x = 1,855,420,294,661.06 - Step 5: Solve for x
x = 1,855,420,294,661.06/1,547,863.72 - Step 6: Final answer
x = 1,198,697.45
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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.