Finding the Fourth Proportional to 1,547,709.17, 2,135,838.65 and 868,645.67
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Solution
The fourth proportional to 1,547,709.17, 2,135,838.65 and 868,645.67 is: 1,198,731.02
Step by Step Solution
- Step 1: Write the proportion equation
1,547,709.17 : 2,135,838.65 = 868,645.67 : x - Step 2: Convert to fraction form
1,547,709.17/2,135,838.65 = 868,645.67/x - Step 3: Cross multiply
1,547,709.17x = 2,135,838.65 × 868,645.67 - Step 4: Simplify right side
1,547,709.17x = 1,855,286,980,118.72 - Step 5: Solve for x
x = 1,855,286,980,118.72/1,547,709.17 - Step 6: Final answer
x = 1,198,731.02
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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.