Finding the Fourth Proportional to 1,855,617.49, 2,778,701.10 and 1,222,612.21
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Solution
The fourth proportional to 1,855,617.49, 2,778,701.10 and 1,222,612.21 is: 1,830,805.06
Step by Step Solution
- Step 1: Write the proportion equation
1,855,617.49 : 2,778,701.10 = 1,222,612.21 : x - Step 2: Convert to fraction form
1,855,617.49/2,778,701.10 = 1,222,612.21/x - Step 3: Cross multiply
1,855,617.49x = 2,778,701.10 × 1,222,612.21 - Step 4: Simplify right side
1,855,617.49x = 3,397,273,892,800.43 - Step 5: Solve for x
x = 3,397,273,892,800.43/1,855,617.49 - Step 6: Final answer
x = 1,830,805.06
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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.