Finding the Fourth Proportional to 2,165,338.17, 2,988,130.44 and 1,198,447.83
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Solution
The fourth proportional to 2,165,338.17, 2,988,130.44 and 1,198,447.83 is: 1,653,837.95
Step by Step Solution
- Step 1: Write the proportion equation
2,165,338.17 : 2,988,130.44 = 1,198,447.83 : x - Step 2: Convert to fraction form
2,165,338.17/2,988,130.44 = 1,198,447.83/x - Step 3: Cross multiply
2,165,338.17x = 2,988,130.44 × 1,198,447.83 - Step 4: Simplify right side
2,165,338.17x = 3,581,118,441,574.95 - Step 5: Solve for x
x = 3,581,118,441,574.95/2,165,338.17 - Step 6: Final answer
x = 1,653,837.95
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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.