Finding the Fourth Proportional to 1,097,694.70, 1,646,542.05 and 920,547.70
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Solution
The fourth proportional to 1,097,694.70, 1,646,542.05 and 920,547.70 is: 1,380,821.55
Step by Step Solution
- Step 1: Write the proportion equation
1,097,694.70 : 1,646,542.05 = 920,547.70 : x - Step 2: Convert to fraction form
1,097,694.70/1,646,542.05 = 920,547.70/x - Step 3: Cross multiply
1,097,694.70x = 1,646,542.05 × 920,547.70 - Step 4: Simplify right side
1,097,694.70x = 1,515,720,497,080.79 - Step 5: Solve for x
x = 1,515,720,497,080.79/1,097,694.70 - Step 6: Final answer
x = 1,380,821.55
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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.