Finding the Fourth Proportional to 1,192,288.68, 1,645,342.47 and 648,412.70
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Solution
The fourth proportional to 1,192,288.68, 1,645,342.47 and 648,412.70 is: 894,800.87
Step by Step Solution
- Step 1: Write the proportion equation
1,192,288.68 : 1,645,342.47 = 648,412.70 : x - Step 2: Convert to fraction form
1,192,288.68/1,645,342.47 = 648,412.70/x - Step 3: Cross multiply
1,192,288.68x = 1,645,342.47 × 648,412.70 - Step 4: Simplify right side
1,192,288.68x = 1,066,860,945,170.66 - Step 5: Solve for x
x = 1,066,860,945,170.66/1,192,288.68 - Step 6: Final answer
x = 894,800.87
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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.