Finding the Fourth Proportional to 4,386,285.80, 6,579,428.70 and 4,218,324.20
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Solution
The fourth proportional to 4,386,285.80, 6,579,428.70 and 4,218,324.20 is: 6,327,486.30
Step by Step Solution
- Step 1: Write the proportion equation
4,386,285.80 : 6,579,428.70 = 4,218,324.20 : x - Step 2: Convert to fraction form
4,386,285.80/6,579,428.70 = 4,218,324.20/x - Step 3: Cross multiply
4,386,285.80x = 6,579,428.70 × 4,218,324.20 - Step 4: Simplify right side
4,386,285.80x = 27,754,163,307,384.54 - Step 5: Solve for x
x = 27,754,163,307,384.54/4,386,285.80 - Step 6: Final answer
x = 6,327,486.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.