Finding the Fourth Proportional to 2,220,809.74, 3,331,214.19 and 1,210,781.05
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Solution
The fourth proportional to 2,220,809.74, 3,331,214.19 and 1,210,781.05 is: 1,816,171.35
Step by Step Solution
- Step 1: Write the proportion equation
2,220,809.74 : 3,331,214.19 = 1,210,781.05 : x - Step 2: Convert to fraction form
2,220,809.74/3,331,214.19 = 1,210,781.05/x - Step 3: Cross multiply
2,220,809.74x = 3,331,214.19 × 1,210,781.05 - Step 4: Simplify right side
2,220,809.74x = 4,033,371,014,743.10 - Step 5: Solve for x
x = 4,033,371,014,743.10/2,220,809.74 - Step 6: Final answer
x = 1,816,171.35
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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.