Finding the Fourth Proportional to 1,554,316.80, 2,331,475.20 and 432,385.80
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Solution
The fourth proportional to 1,554,316.80, 2,331,475.20 and 432,385.80 is: 648,578.70
Step by Step Solution
- Step 1: Write the proportion equation
1,554,316.80 : 2,331,475.20 = 432,385.80 : x - Step 2: Convert to fraction form
1,554,316.80/2,331,475.20 = 432,385.80/x - Step 3: Cross multiply
1,554,316.80x = 2,331,475.20 × 432,385.80 - Step 4: Simplify right side
1,554,316.80x = 1,008,096,769,532.16 - Step 5: Solve for x
x = 1,008,096,769,532.16/1,554,316.80 - Step 6: Final answer
x = 648,578.70
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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.