Finding the Fourth Proportional to 2,072,723.21, 3,106,726.29 and 1,261,318.06
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Solution
The fourth proportional to 2,072,723.21, 3,106,726.29 and 1,261,318.06 is: 1,890,541.85
Step by Step Solution
- Step 1: Write the proportion equation
2,072,723.21 : 3,106,726.29 = 1,261,318.06 : x - Step 2: Convert to fraction form
2,072,723.21/3,106,726.29 = 1,261,318.06/x - Step 3: Cross multiply
2,072,723.21x = 3,106,726.29 × 1,261,318.06 - Step 4: Simplify right side
2,072,723.21x = 3,918,569,977,053.80 - Step 5: Solve for x
x = 3,918,569,977,053.80/2,072,723.21 - Step 6: Final answer
x = 1,890,541.85
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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.