Finding the Fourth Proportional to 1,428,485.58, 2,142,616.58 and 417,616.92
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Solution
The fourth proportional to 1,428,485.58, 2,142,616.58 and 417,616.92 is: 626,392.70
Step by Step Solution
- Step 1: Write the proportion equation
1,428,485.58 : 2,142,616.58 = 417,616.92 : x - Step 2: Convert to fraction form
1,428,485.58/2,142,616.58 = 417,616.92/x - Step 3: Cross multiply
1,428,485.58x = 2,142,616.58 × 417,616.92 - Step 4: Simplify right side
1,428,485.58x = 894,792,936,880.53 - Step 5: Solve for x
x = 894,792,936,880.53/1,428,485.58 - Step 6: Final answer
x = 626,392.70
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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.