Finding the Fourth Proportional to 1,547,872.21, 2,136,117.09 and 859,555.59
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Solution
The fourth proportional to 1,547,872.21, 2,136,117.09 and 859,555.59 is: 1,186,216.39
Step by Step Solution
- Step 1: Write the proportion equation
1,547,872.21 : 2,136,117.09 = 859,555.59 : x - Step 2: Convert to fraction form
1,547,872.21/2,136,117.09 = 859,555.59/x - Step 3: Cross multiply
1,547,872.21x = 2,136,117.09 × 859,555.59 - Step 4: Simplify right side
1,547,872.21x = 1,836,111,385,604.03 - Step 5: Solve for x
x = 1,836,111,385,604.03/1,547,872.21 - Step 6: Final answer
x = 1,186,216.39
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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.