Finding the Fourth Proportional to 847,120.84, 1,263,208.49 and 729,547.72
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Solution
The fourth proportional to 847,120.84, 1,263,208.49 and 729,547.72 is: 1,087,885.97
Step by Step Solution
- Step 1: Write the proportion equation
847,120.84 : 1,263,208.49 = 729,547.72 : x - Step 2: Convert to fraction form
847,120.84/1,263,208.49 = 729,547.72/x - Step 3: Cross multiply
847,120.84x = 1,263,208.49 × 729,547.72 - Step 4: Simplify right side
847,120.84x = 921,570,873,764.14 - Step 5: Solve for x
x = 921,570,873,764.14/847,120.84 - Step 6: Final answer
x = 1,087,885.97
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.