Finding the Fourth Proportional to 2,154,693.07, 2,973,485.45 and 1,187,802.19
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Solution
The fourth proportional to 2,154,693.07, 2,973,485.45 and 1,187,802.19 is: 1,639,171.99
Step by Step Solution
- Step 1: Write the proportion equation
2,154,693.07 : 2,973,485.45 = 1,187,802.19 : x - Step 2: Convert to fraction form
2,154,693.07/2,973,485.45 = 1,187,802.19/x - Step 3: Cross multiply
2,154,693.07x = 2,973,485.45 × 1,187,802.19 - Step 4: Simplify right side
2,154,693.07x = 3,531,912,523,504.12 - Step 5: Solve for x
x = 3,531,912,523,504.12/2,154,693.07 - Step 6: Final answer
x = 1,639,171.99
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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.