Finding the Fourth Proportional to 1,456,228.68, 2,009,604.90 and 811,689.74
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Solution
The fourth proportional to 1,456,228.68, 2,009,604.90 and 811,689.74 is: 1,120,137.04
Step by Step Solution
- Step 1: Write the proportion equation
1,456,228.68 : 2,009,604.90 = 811,689.74 : x - Step 2: Convert to fraction form
1,456,228.68/2,009,604.90 = 811,689.74/x - Step 3: Cross multiply
1,456,228.68x = 2,009,604.90 × 811,689.74 - Step 4: Simplify right side
1,456,228.68x = 1,631,175,678,783.73 - Step 5: Solve for x
x = 1,631,175,678,783.73/1,456,228.68 - Step 6: Final answer
x = 1,120,137.04
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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.