Finding the Fourth Proportional to 1,378,423.53, 1,902,225.56 and 766,562.94
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Solution
The fourth proportional to 1,378,423.53, 1,902,225.56 and 766,562.94 is: 1,057,857.46
Step by Step Solution
- Step 1: Write the proportion equation
1,378,423.53 : 1,902,225.56 = 766,562.94 : x - Step 2: Convert to fraction form
1,378,423.53/1,902,225.56 = 766,562.94/x - Step 3: Cross multiply
1,378,423.53x = 1,902,225.56 × 766,562.94 - Step 4: Simplify right side
1,378,423.53x = 1,458,175,613,983.93 - Step 5: Solve for x
x = 1,458,175,613,983.93/1,378,423.53 - Step 6: Final answer
x = 1,057,857.46
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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.