Finding the Fourth Proportional to 2,167,783.40, 2,991,724.88 and 1,201,216.88
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Solution
The fourth proportional to 2,167,783.40, 2,991,724.88 and 1,201,216.88 is: 1,657,781.14
Step by Step Solution
- Step 1: Write the proportion equation
2,167,783.40 : 2,991,724.88 = 1,201,216.88 : x - Step 2: Convert to fraction form
2,167,783.40/2,991,724.88 = 1,201,216.88/x - Step 3: Cross multiply
2,167,783.40x = 2,991,724.88 × 1,201,216.88 - Step 4: Simplify right side
2,167,783.40x = 3,593,710,426,171.97 - Step 5: Solve for x
x = 3,593,710,426,171.97/2,167,783.40 - Step 6: Final answer
x = 1,657,781.14
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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.