Finding the Fourth Proportional to 2,069,864.75, 2,855,202.68 and 1,345,195.13
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Solution
The fourth proportional to 2,069,864.75, 2,855,202.68 and 1,345,195.13 is: 1,855,582.47
Step by Step Solution
- Step 1: Write the proportion equation
2,069,864.75 : 2,855,202.68 = 1,345,195.13 : x - Step 2: Convert to fraction form
2,069,864.75/2,855,202.68 = 1,345,195.13/x - Step 3: Cross multiply
2,069,864.75x = 2,855,202.68 × 1,345,195.13 - Step 4: Simplify right side
2,069,864.75x = 3,840,804,740,710.98 - Step 5: Solve for x
x = 3,840,804,740,710.98/2,069,864.75 - Step 6: Final answer
x = 1,855,582.47
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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.