Finding the Fourth Proportional to 1,316,638.21, 1,975,449.39 and 518,476.15
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Solution
The fourth proportional to 1,316,638.21, 1,975,449.39 and 518,476.15 is: 777,908.00
Step by Step Solution
- Step 1: Write the proportion equation
1,316,638.21 : 1,975,449.39 = 518,476.15 : x - Step 2: Convert to fraction form
1,316,638.21/1,975,449.39 = 518,476.15/x - Step 3: Cross multiply
1,316,638.21x = 1,975,449.39 × 518,476.15 - Step 4: Simplify right side
1,316,638.21x = 1,024,223,394,247.05 - Step 5: Solve for x
x = 1,024,223,394,247.05/1,316,638.21 - Step 6: Final answer
x = 777,908.00
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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.