Finding the Fourth Proportional to 1,213,412.68, 1,675,115.72 and 754,675.12
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Solution
The fourth proportional to 1,213,412.68, 1,675,115.72 and 754,675.12 is: 1,041,828.70
Step by Step Solution
- Step 1: Write the proportion equation
1,213,412.68 : 1,675,115.72 = 754,675.12 : x - Step 2: Convert to fraction form
1,213,412.68/1,675,115.72 = 754,675.12/x - Step 3: Cross multiply
1,213,412.68x = 1,675,115.72 × 754,675.12 - Step 4: Simplify right side
1,213,412.68x = 1,264,168,157,004.89 - Step 5: Solve for x
x = 1,264,168,157,004.89/1,213,412.68 - Step 6: Final answer
x = 1,041,828.70
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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.