Finding the Fourth Proportional to 2,154,658.09, 2,972,877.10 and 1,369,437.61
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Solution
The fourth proportional to 2,154,658.09, 2,972,877.10 and 1,369,437.61 is: 1,889,473.66
Step by Step Solution
- Step 1: Write the proportion equation
2,154,658.09 : 2,972,877.10 = 1,369,437.61 : x - Step 2: Convert to fraction form
2,154,658.09/2,972,877.10 = 1,369,437.61/x - Step 3: Cross multiply
2,154,658.09x = 2,972,877.10 × 1,369,437.61 - Step 4: Simplify right side
2,154,658.09x = 4,071,169,710,647.73 - Step 5: Solve for x
x = 4,071,169,710,647.73/2,154,658.09 - Step 6: Final answer
x = 1,889,473.66
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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.