Finding the Fourth Proportional to 1,213,415.61, 1,675,119.80 and 754,678.07
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Solution
The fourth proportional to 1,213,415.61, 1,675,119.80 and 754,678.07 is: 1,041,832.80
Step by Step Solution
- Step 1: Write the proportion equation
1,213,415.61 : 1,675,119.80 = 754,678.07 : x - Step 2: Convert to fraction form
1,213,415.61/1,675,119.80 = 754,678.07/x - Step 3: Cross multiply
1,213,415.61x = 1,675,119.80 × 754,678.07 - Step 4: Simplify right side
1,213,415.61x = 1,264,176,177,682.79 - Step 5: Solve for x
x = 1,264,176,177,682.79/1,213,415.61 - Step 6: Final answer
x = 1,041,832.80
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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.