Finding the Fourth Proportional to 2,290,875.94, 3,161,416.18 and 1,272,280.68
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Solution
The fourth proportional to 2,290,875.94, 3,161,416.18 and 1,272,280.68 is: 1,755,751.44
Step by Step Solution
- Step 1: Write the proportion equation
2,290,875.94 : 3,161,416.18 = 1,272,280.68 : x - Step 2: Convert to fraction form
2,290,875.94/3,161,416.18 = 1,272,280.68/x - Step 3: Cross multiply
2,290,875.94x = 3,161,416.18 × 1,272,280.68 - Step 4: Simplify right side
2,290,875.94x = 4,022,208,727,253.40 - Step 5: Solve for x
x = 4,022,208,727,253.40/2,290,875.94 - Step 6: Final answer
x = 1,755,751.44
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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.