Finding the Fourth Proportional to 1,643,632.62, 2,268,438.12 and 945,898.62
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Solution
The fourth proportional to 1,643,632.62, 2,268,438.12 and 945,898.62 is: 1,305,469.64
Step by Step Solution
- Step 1: Write the proportion equation
1,643,632.62 : 2,268,438.12 = 945,898.62 : x - Step 2: Convert to fraction form
1,643,632.62/2,268,438.12 = 945,898.62/x - Step 3: Cross multiply
1,643,632.62x = 2,268,438.12 × 945,898.62 - Step 4: Simplify right side
1,643,632.62x = 2,145,712,487,263.39 - Step 5: Solve for x
x = 2,145,712,487,263.39/1,643,632.62 - Step 6: Final answer
x = 1,305,469.64
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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.